diff --git a/boa_engine/src/context/mod.rs b/boa_engine/src/context/mod.rs
index 2a8a3df9c79..60eb6313abd 100644
--- a/boa_engine/src/context/mod.rs
+++ b/boa_engine/src/context/mod.rs
@@ -525,9 +525,9 @@ impl<'host> Context<'host> {
     }
 
     /// Get the remaining instruction count
-    #[cfg(freature = "fuzz")]
+    #[cfg(feature = "fuzz")]
     #[inline]
-    pub const fn instructions_remaining(&self) -> u64 {
+    pub const fn instructions_remaining(&self) -> usize {
         self.instructions_remaining
     }
     /// Get the [`RootShape`].
diff --git a/boa_engine/src/error.rs b/boa_engine/src/error.rs
index 839f404c687..a103197d6b6 100644
--- a/boa_engine/src/error.rs
+++ b/boa_engine/src/error.rs
@@ -819,9 +819,7 @@ impl JsNativeError {
             JsNativeErrorKind::Uri => (constructors.uri_error().prototype(), ErrorKind::Uri),
             #[cfg(feature = "fuzz")]
             JsNativeErrorKind::NoInstructionsRemain => {
-                unreachable!(
-                    "The NoInstructionsRemain native error cannot be converted to an opaque type."
-                )
+                (constructors.eval_error().prototype(), ErrorKind::Eval)
             }
             JsNativeErrorKind::RuntimeLimit => {
                 panic!("The RuntimeLimit native error cannot be converted to an opaque type.")