diff --git a/src/libjsparser/parser.c b/src/libjsparser/parser.c
index cc7b0cfc4..c05299211 100644
--- a/src/libjsparser/parser.c
+++ b/src/libjsparser/parser.c
@@ -2024,6 +2024,10 @@ parse_assignment_expression (void)
     }
     default:
     {
+      if (STACK_HEAD (U8, 1))
+      {
+        STACK_DROP (U16, 1);
+      }
       lexer_save_token (TOK ());
       goto cleanup;
     }