diff --git a/CMakePresets.json b/CMakePresets.json
index 7cceccfe00..1ab88397ad 100644
--- a/CMakePresets.json
+++ b/CMakePresets.json
@@ -14,7 +14,7 @@
         "CMAKE_BUILD_TYPE": "Debug",
         "BUILD_SHARED_LIBS": "ON",
         "BUILD_TESTING" : "ON",
-        "ENABLE_EXPERIMENTAL_FEATURS" : "ON",
+        "ENABLE_EXPERIMENTAL_FEATURES" : "ON",
 
         "ENABLE_PLUGIN_LOADING" : "OFF",
         "WITH_AOM_DECODER" : "ON",
diff --git a/README.md b/README.md
index 6f1b1b14b1..876f22cb14 100644
--- a/README.md
+++ b/README.md
@@ -174,7 +174,7 @@ Further options are:
    Note that header compression is not widely supported yet.
 * `WITH_LIBSHARPYUV`: enables high-quality YCbCr/RGB color space conversion algorithms (requires `libsharpyuv`,
    e.g. from the `third-party` directory).
-* `ENABLE_EXPERIMENTAL_FEATURS`: enables functions that are currently in development and for which the API is not stable yet.
+* `ENABLE_EXPERIMENTAL_FEATURES`: enables functions that are currently in development and for which the API is not stable yet.
    When this is enabled, a header `heif_experimental.h` will be installed that contains this unstable API.
    Distributions that rely on a stable API should not enable this.
 * `ENABLE_MULTITHREADING_SUPPORT`: can be used to disable any multithreading support, e.g. for embedded platforms.
diff --git a/examples/heif_enc.cc b/examples/heif_enc.cc
index a5678755db..c0bc1975dc 100644
--- a/examples/heif_enc.cc
+++ b/examples/heif_enc.cc
@@ -210,7 +210,7 @@ void show_help(const char* argv0)
             << "  --tiled-image-height #    override image height of tiled image\n"
             << "  --tiled-input-x-y         usually, the first number in the input tile filename should be the y position.\n"
             << "                            With this option, this can be swapped so that the first number is x, the second number y.\n"
-#if ENABLE_EXPERIMENTAL_FEATURS
+#if ENABLE_EXPERIMENTAL_FEATURES
             << "  --tiling-method METHOD    choose one of these methods: grid, tili, unci. The default is 'grid'.\n"
             << "  --add-pyramid-group       when several images are given, put them into a multi-resolution pyramid group.\n"
 #endif
@@ -749,7 +749,7 @@ heif_image_handle* encode_tiled(heif_context* ctx, heif_encoder* encoder, heif_e
       return nullptr;
     }
   }
-#if ENABLE_EXPERIMENTAL_FEATURS
+#if ENABLE_EXPERIMENTAL_FEATURES
   else if (tiling_method == "tili") {
     heif_tiled_image_parameters tiled_params{};
     tiled_params.version = 1;
@@ -974,7 +974,7 @@ int main(int argc, char** argv)
       case OPTION_TILING_METHOD:
         tiling_method = optarg;
         if (tiling_method != "grid"
-#if ENABLE_EXPERIMENTAL_FEATURS
+#if ENABLE_EXPERIMENTAL_FEATURES
             && tiling_method != "tili" && tiling_method != "unci"
 #endif
           ) {
@@ -1393,7 +1393,7 @@ int main(int argc, char** argv)
     heif_image_handle_release(primary_image_handle);
   }
 
-#if ENABLE_EXPERIMENTAL_FEATURS
+#if ENABLE_EXPERIMENTAL_FEATURES
   if (add_pyramid_group && encoded_image_ids.size() > 1) {
     error = heif_context_add_pyramid_entity_group(context.get(), encoded_image_ids.data(), encoded_image_ids.size(), nullptr);
     if (error.code) {
diff --git a/libheif/CMakeLists.txt b/libheif/CMakeLists.txt
index 4530e93705..194c445586 100644
--- a/libheif/CMakeLists.txt
+++ b/libheif/CMakeLists.txt
@@ -129,14 +129,14 @@ if (ENABLE_PLUGIN_LOADING)
     endif ()
 endif ()
 
-option(ENABLE_EXPERIMENTAL_FEATURS "Compile experimental features and install headers with unstable API" OFF)
-if (ENABLE_EXPERIMENTAL_FEATURS)
+option(ENABLE_EXPERIMENTAL_FEATURES "Compile experimental features and install headers with unstable API" OFF)
+if (ENABLE_EXPERIMENTAL_FEATURES)
     list(APPEND libheif_sources api/libheif/heif_experimental.h
             api/libheif/heif_experimental.cc)
 
     list(APPEND libheif_headers api/libheif/heif_experimental.h)
 
-    target_compile_definitions(heif PUBLIC ENABLE_EXPERIMENTAL_FEATURS)
+    target_compile_definitions(heif PUBLIC ENABLE_EXPERIMENTAL_FEATURES)
 endif()
 
 # Needed to find libheif/heif_version.h while compiling the library
diff --git a/libheif/api/libheif/heif_experimental.h b/libheif/api/libheif/heif_experimental.h
index 3f42f21f0c..9f525f5d44 100644
--- a/libheif/api/libheif/heif_experimental.h
+++ b/libheif/api/libheif/heif_experimental.h
@@ -27,7 +27,7 @@
 extern "C" {
 #endif
 
-#if ENABLE_EXPERIMENTAL_FEATURS
+#if ENABLE_EXPERIMENTAL_FEATURES
 
   /* ===================================================================================
    *   This file contains candidate APIs that did not make it into the public API yet.
@@ -137,7 +137,7 @@ struct heif_tiled_image_parameters {
   uint8_t tiles_are_sequential;  // TODO: can we derive this automatically
 };
 
-#if ENABLE_EXPERIMENTAL_FEATURS
+#if ENABLE_EXPERIMENTAL_FEATURES
 LIBHEIF_API
 struct heif_error heif_context_add_tiled_image(struct heif_context* ctx,
                                                const struct heif_tiled_image_parameters* parameters,
@@ -164,7 +164,7 @@ struct heif_unci_image_parameters {
   // TODO: interleave type, padding
 };
 
-#if ENABLE_EXPERIMENTAL_FEATURS
+#if ENABLE_EXPERIMENTAL_FEATURES
 LIBHEIF_API
 struct heif_error heif_context_add_unci_image(struct heif_context* ctx,
                                               const struct heif_unci_image_parameters* parameters,
@@ -182,7 +182,7 @@ struct heif_pyramid_layer_info {
   uint32_t tiles_in_layer_column;
 };
 
-#if ENABLE_EXPERIMENTAL_FEATURS
+#if ENABLE_EXPERIMENTAL_FEATURES
 // The input images are automatically sorted according to resolution. You can provide them in any order.
 LIBHEIF_API
 struct heif_error heif_context_add_pyramid_entity_group(struct heif_context* ctx,
@@ -208,7 +208,7 @@ enum heif_channel_datatype
   heif_channel_datatype_complex_number = 4
 };
 
-#if ENABLE_EXPERIMENTAL_FEATURS
+#if ENABLE_EXPERIMENTAL_FEATURES
 LIBHEIF_API
 struct heif_error heif_image_add_channel(struct heif_image* image,
                                          enum heif_channel channel,
@@ -232,7 +232,7 @@ struct heif_complex64 {
   double real, imaginary;
 };
 
-#if ENABLE_EXPERIMENTAL_FEATURS
+#if ENABLE_EXPERIMENTAL_FEATURES
 LIBHEIF_API
 enum heif_channel_datatype heif_image_get_datatype(const struct heif_image* img, enum heif_channel channel);
 
@@ -359,7 +359,7 @@ struct heif_tai_clock_info
 };
 
 
-#if ENABLE_EXPERIMENTAL_FEATURS
+#if ENABLE_EXPERIMENTAL_FEATURES
 int heif_is_tai_clock_info_drift_rate_undefined(int32_t drift_rate);
 
 
@@ -391,7 +391,7 @@ struct heif_tai_timestamp_packet
   uint8_t timestamp_is_modified;         // bool
 };
 
-#if ENABLE_EXPERIMENTAL_FEATURS
+#if ENABLE_EXPERIMENTAL_FEATURES
 
 // Creates a new TAI timestamp property if one doesn't already exist for itemId.
 // Creates a new clock info property if one doesn't already exist for itemId.
diff --git a/libheif/api/libheif/heif_properties.cc b/libheif/api/libheif/heif_properties.cc
index 2977384a72..5040f81b00 100644
--- a/libheif/api/libheif/heif_properties.cc
+++ b/libheif/api/libheif/heif_properties.cc
@@ -359,7 +359,7 @@ struct heif_error find_property(const struct heif_context* context,
 }
 
 
-#if ENABLE_EXPERIMENTAL_FEATURS
+#if ENABLE_EXPERIMENTAL_FEATURES
 const uint64_t heif_tai_clock_info_unknown_time_uncertainty = 0xFFFFFFFFFFFFFFFF;
 const uint64_t heif_unknown_tai_timestamp = 0xFFFFFFFFFFFFFFFF;
 const int32_t heif_tai_clock_info_unknown_drift_rate = 0x7FFFFFFF;
diff --git a/libheif/box.cc b/libheif/box.cc
index dc7b440596..f2064235e9 100644
--- a/libheif/box.cc
+++ b/libheif/box.cc
@@ -660,11 +660,6 @@ Error Box::read(BitstreamRange& range, std::shared_ptr<Box>* result, const heif_
       box = std::make_shared<Box_j2kL>();
       break;
 
-#if ENABLE_EXPERIMENTAL_FEATURS
-      case fourcc("tilC"):
-      box = std::make_shared<Box_tilC>();
-      break;
-#endif
 
     // --- mski
       
@@ -672,7 +667,7 @@ Error Box::read(BitstreamRange& range, std::shared_ptr<Box>* result, const heif_
       box = std::make_shared<Box_mskC>();
       break;
 
-#if ENABLE_EXPERIMENTAL_FEATURS
+#if ENABLE_EXPERIMENTAL_FEATURES
       // --- TAI timestamps
 
     case fourcc("itai"):
@@ -690,7 +685,7 @@ Error Box::read(BitstreamRange& range, std::shared_ptr<Box>* result, const heif_
       box = std::make_shared<Box_avcC>();
       break;
 
-#if WITH_EXPERIMENTAL_FEATURES
+#if ENABLE_EXPERIMENTAL_FEATURES
     case fourcc("tilC"):
       box = std::make_shared<Box_tilC>();
       break;
@@ -4580,7 +4575,7 @@ Error Box_cmex::write(StreamWriter& writer) const
 }
 
 
-#if ENABLE_EXPERIMENTAL_FEATURS
+#if ENABLE_EXPERIMENTAL_FEATURES
 std::string Box_taic::dump(Indent& indent) const {
   std::ostringstream sstr;
   sstr << Box::dump(indent);
diff --git a/libheif/box.h b/libheif/box.h
index 220062563f..84aef8dc03 100644
--- a/libheif/box.h
+++ b/libheif/box.h
@@ -1550,7 +1550,7 @@ class Box_udes : public FullBox
 };
 
 
-#if ENABLE_EXPERIMENTAL_FEATURS
+#if ENABLE_EXPERIMENTAL_FEATURES
 class Box_taic : public FullBox
 {
 public:
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 1aa35e7448..890ba84409 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -36,7 +36,7 @@ else()
     add_libheif_test(file_layout)
 endif()
 
-if (WITH_EXPERIMENTAL_FEATURS AND WITH_REDUCED_VISIBILITY)
+if (ENABLE_EXPERIMENTAL_FEATURES AND WITH_REDUCED_VISIBILITY)
     add_libheif_test(pixel_data_types)
 endif()