1 files changed, 3 insertions, 0 deletions
diff --git a/parse.y b/parse.y
index 6637bba24..a9ad0673d 100644
--- a/parse.y
+++ b/parse.y
@@ -8532,6 +8532,9 @@ rb_id2name(ID id)
 static int
 symbols_i(VALUE sym, ID value, VALUE ary)
 {
+    if (!RBASIC(sym)->klass) {
+	RBASIC(sym)->klass = rb_cSymbol;
+    }
     rb_ary_push(ary, sym);
     return ST_CONTINUE;
 }