diff --git a/core/my_basic.h b/core/my_basic.h
index 8ee313d..8c7ee53 100755
--- a/core/my_basic.h
+++ b/core/my_basic.h
@@ -438,6 +438,7 @@ typedef enum mb_error_e {
 	SE_RN_EMPTY_COLLECTION,
 	SE_RN_REFERENCED_TYPE_EXPECTED,
 	SE_RN_REFERENCE_COUNT_OVERFLOW,
+	SE_RN_WEAK_REFERENCE_COUNT_OVERFLOW,
 	SE_RN_DEBUG_ID_NOT_FOUND,
 	SE_RN_STACK_TRACE_DISABLED,
 	/** Extended abort */