1 files changed, 1 insertions, 0 deletions
diff --git a/parse.y b/parse.y
index ef709425cb..157aefc939 100644
--- a/parse.y
+++ b/parse.y
@@ -4351,6 +4351,7 @@ yylex()
 	    else {
 		rb_compile_error("`@@%c' is not allowed as a class variable name", c);
 	    }
+	    return 0;
 	}
 	if (!is_identchar(c)) {
 	    pushback(c);