diff --git a/.github/workflows/run-tpch.yaml b/.github/workflows/run-tpch.yaml
index 99a5eb4471..1609deb47f 100644
--- a/.github/workflows/run-tpch.yaml
+++ b/.github/workflows/run-tpch.yaml
@@ -10,7 +10,7 @@ on:
       skip_questions:
         description: The TPC-H questions to skip
         required: false
-        default: 2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22
+        default: "2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22"
       scale_factor:
         description: Which scale factor to use
         required: false