diff --git a/mlir/utils/vscode/pdll-grammar.json b/mlir/utils/vscode/pdll-grammar.json
index 142d3978906a..47c8968c3ac0 100644
--- a/mlir/utils/vscode/pdll-grammar.json
+++ b/mlir/utils/vscode/pdll-grammar.json
@@ -27,6 +27,9 @@
     },
     {
       "include": "#pattern"
+    },
+    {
+      "include": "#inside_pattern"
     }
   ],
   "repository": {