diff --git a/Headers/gnustep/base/objc-malloc.h b/Headers/gnustep/base/objc-malloc.h
index a189f3013..3fc88aaa2 100644
--- a/Headers/gnustep/base/objc-malloc.h
+++ b/Headers/gnustep/base/objc-malloc.h
@@ -44,6 +44,8 @@ extern void (*objc_free)(void *);
    ((VAR) = (TYPE *) (*objc_calloc)((unsigned)(NUM), sizeof(TYPE)))
 #define OBJC_FREE(PTR) (*objc_free)((PTR))
 
+#ifdef __OBJC__
 extern id MemoryExhaustedException;
+#endif
 
 #endif /* __objc_malloc_h_INCLUDE_GNU */
diff --git a/Source/objects/objc-malloc.h b/Source/objects/objc-malloc.h
index a189f3013..3fc88aaa2 100644
--- a/Source/objects/objc-malloc.h
+++ b/Source/objects/objc-malloc.h
@@ -44,6 +44,8 @@ extern void (*objc_free)(void *);
    ((VAR) = (TYPE *) (*objc_calloc)((unsigned)(NUM), sizeof(TYPE)))
 #define OBJC_FREE(PTR) (*objc_free)((PTR))
 
+#ifdef __OBJC__
 extern id MemoryExhaustedException;
+#endif
 
 #endif /* __objc_malloc_h_INCLUDE_GNU */