diff --git a/packages/parser/match.ts b/packages/parser/match.ts
index cac2e36..3016959 100644
--- a/packages/parser/match.ts
+++ b/packages/parser/match.ts
@@ -41,7 +41,7 @@ function matchPattern(
   }
   if (pattern.arg) {
     args[pattern.arg.name] = cursor.currentNode();
-    return true;
+    return pattern.arg.type === cursor.nodeType;
   }
   if (pattern.block) {
     let from = cursor.startIndex;