diff --git a/.github/workflows/nim_waku_daily.yml b/.github/workflows/nim_waku_daily.yml
index ff3379a7..373e085f 100644
--- a/.github/workflows/nim_waku_daily.yml
+++ b/.github/workflows/nim_waku_daily.yml
@@ -10,7 +10,7 @@ on:
   workflow_dispatch:
 
 env:
-  DOCKER_BUILDKIT: 1
+  DOCKER_BUILDKIT: '1'
 
 jobs:
   test-common: