diff --git a/include/sled/lang/attributes.h b/include/sled/lang/attributes.h
index 2702cf7..ca29caf 100644
--- a/include/sled/lang/attributes.h
+++ b/include/sled/lang/attributes.h
@@ -26,7 +26,7 @@
 
 #define PT_GUARDED_BY(x) THREAD_ANNOTATION_ATTRIBUTE__(pt_guarded_by(x))
 
-#else
+#else// defined(__clang__)
 
 #define EXCLUSIVE_TRYLOCK_FUNCTION(...) THREAD_ANNOTATION_ATTRIBUTE__(exclusive_trylock(__VA_ARGS__))
 #define EXCLUSIVE_LOCK_FUNCTION(...) THREAD_ANNOTATION_ATTRIBUTE__(exclusive_lock(__VA_ARGS__))