diff --git a/src/core/loader/symbols_resolver.h b/src/core/loader/symbols_resolver.h
index 80ea46f2e..d73b6ba08 100644
--- a/src/core/loader/symbols_resolver.h
+++ b/src/core/loader/symbols_resolver.h
@@ -68,6 +68,8 @@ public:
             return "Tls";
         case SymbolType::NoType:
             return "NoType";
+        default:
+            return "Invalid";
         }
     }