1 files changed, 1 insertions, 1 deletions
diff --git a/parse.y b/parse.y
index eb9c5e6198..e6f2cff3ab 100644
--- a/parse.y
+++ b/parse.y
@@ -3443,7 +3443,7 @@ yylex()
 
       default:
 	if (!is_identchar(c) || ISDIGIT(c)) {
-	    rb_compile_error("Invalid char '%c'(%03o) in expression", c, c);
+	    rb_compile_error("Invalid char `\\%03o' in expression", c);
 	    goto retry;
 	}