diff --git a/CMakeLists.txt b/CMakeLists.txt
index 027406d6..8d1e204f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -149,7 +149,6 @@ if(NOT ${CUSTOM_BOOL_TYPE} STREQUAL "")
     set(FLAGS "\
         ${FLAGS} \
         -D PUBNUB_BOOL_TYPE=${CUSTOM_BOOL_TYPE}")
-    target_compile_definitions(pubnub PRIVATE "PUBNUB_BOOL_TYPE=${CUSTOM_BOOL_TYPE}")
 endif()
 
 set(CORE_SOURCEFILES 
@@ -503,6 +502,10 @@ if(NOT ESP_PLATFORM)
 
     add_library(pubnub ${LIBTYPE} ${SOURCEFILES})
 
+    if(NOT ${CUSTOM_BOOL_TYPE} STREQUAL "")
+        target_compile_definitions(pubnub PUBLIC PUBNUB_BOOL_TYPE=${CUSTOM_BOOL_TYPE})
+    endif()
+
     target_include_directories(pubnub PUBLIC
         ${CMAKE_CURRENT_LIST_DIR}
         ${CMAKE_CURRENT_LIST_DIR}/core