diff --git a/include/ucore/logging.h b/include/ucore/logging.h
index bbaebe0..3da4baa 100644
--- a/include/ucore/logging.h
+++ b/include/ucore/logging.h
@@ -280,8 +280,8 @@ void uc_logf(int log_level, int module, int raw,
 #   define UC_DEBUGFR(mod, fmt, ...)\
         uc_logf(UC_LL_DEBUG, mod,1 , UC_SRC_LOCATION, fmt, ## __VA_ARGS__)
 #else 
-#   define UC_DEBUGF(mod, fmt, ...)
-#   define UC_DEBUGFR(mod, fmt, ...)
+#   define UC_DEBUGF(mod, fmt, ...) do {} while (0)
+#   define UC_DEBUGFR(mod, fmt, ...) do {} while (0)
 #endif
 
 /** Main macro that should be used for logging.