diff --git a/parser.c b/parser.c
index d53f3f1..194f224 100644
--- a/parser.c
+++ b/parser.c
@@ -521,7 +521,8 @@ static bool parser_sy_pop(parser_t *parser, shunt *sy)
                 if (opts_standard != COMPILER_GMQCC) {
                     /* this error doesn't need to make us bail out */
                     (void)!parsewarning(parser, WARN_EXTENSIONS,
-                                        "accessing array-field members of an entity without parenthesis");
+                                        "accessing array-field members of an entity without parenthesis\n"
+                                        " -> this is an extension from -std=gmqcc");
                 }
             }
             break;