diff --git a/src/codegen/arm64/assembler-arm64-inl.h b/src/codegen/arm64/assembler-arm64-inl.h
index 6f6fdb9271..51b72ceca0 100644
--- a/src/codegen/arm64/assembler-arm64-inl.h
+++ b/src/codegen/arm64/assembler-arm64-inl.h
@@ -666,7 +666,8 @@ HeapObject RelocInfo::target_object(PtrComprCageBase cage_base) {
     Object obj(DecompressTaggedPointer(cage_base, compressed));
     // Embedding of compressed Code objects must not happen when external code
     // space is enabled, because CodeDataContainers must be used instead.
-    DCHECK_IMPLIES(V8_EXTERNAL_CODE_SPACE_BOOL, !obj.IsCode(cage_base));
+    DCHECK_IMPLIES(V8_EXTERNAL_CODE_SPACE_BOOL,
+                   !IsCodeSpaceObject(HeapObject::cast(obj)));
     return HeapObject::cast(obj);
   } else {
     return HeapObject::cast(
diff --git a/src/codegen/x64/assembler-x64-inl.h b/src/codegen/x64/assembler-x64-inl.h
index 7cad2b22d5..dd74e93f10 100644
--- a/src/codegen/x64/assembler-x64-inl.h
+++ b/src/codegen/x64/assembler-x64-inl.h
@@ -322,7 +322,8 @@ HeapObject RelocInfo::target_object(PtrComprCageBase cage_base) {
     Object obj(DecompressTaggedPointer(cage_base, compressed));
     // Embedding of compressed Code objects must not happen when external code
     // space is enabled, because CodeDataContainers must be used instead.
-    DCHECK_IMPLIES(V8_EXTERNAL_CODE_SPACE_BOOL, !obj.IsCode(cage_base));
+    DCHECK_IMPLIES(V8_EXTERNAL_CODE_SPACE_BOOL,
+                   !IsCodeSpaceObject(HeapObject::cast(obj)));
     return HeapObject::cast(obj);
   }
   DCHECK(IsFullEmbeddedObject(rmode_) || IsDataEmbeddedObject(rmode_));
diff --git a/src/objects/objects-inl.h b/src/objects/objects-inl.h
index 5f8666a660..8996ffb96b 100644
--- a/src/objects/objects-inl.h
+++ b/src/objects/objects-inl.h
@@ -727,7 +727,7 @@ HeapObject MapWord::ToForwardingAddress() {
   HeapObject obj = HeapObject::FromAddress(value_);
   // For objects allocated outside of the main pointer compression cage the
   // variant with explicit cage base must be used.
-  DCHECK_IMPLIES(V8_EXTERNAL_CODE_SPACE_BOOL, !obj.IsCode());
+  DCHECK_IMPLIES(V8_EXTERNAL_CODE_SPACE_BOOL, !IsCodeSpaceObject(obj));
   return obj;
 }