diff --git a/act/schema/action_schema.json b/act/schema/action_schema.json
index 2b2a22f0..c0f7b69a 100644
--- a/act/schema/action_schema.json
+++ b/act/schema/action_schema.json
@@ -177,6 +177,7 @@
         "matrix",
         "job",
         "runner",
+        "vars",
         "hashFiles(1,255)"
       ],
       "string": {}
diff --git a/act/schema/schema_test.go b/act/schema/schema_test.go
index 5941fc40..d7bc383f 100644
--- a/act/schema/schema_test.go
+++ b/act/schema/schema_test.go
@@ -140,7 +140,7 @@ inputs:
     default: '${{ env.GITHUB_SERVER_URL }}'
   repo:
     description: 'repo description'
-    default: '${{ github.repository }}'
+    default: '${{ github.repository }} ${{ vars.VARIABLE }}'
 runs:
   using: "composite"
   steps: