diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 35e1a8157a..86ff8122a8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -63,7 +63,7 @@ jobs:
   node:
     runs-on: ubuntu-latest
     env:
-      WAKUNODE_IMAGE: ${{ github.event.inputs.nim_wakunode_image || "statusteam/nim-waku:v0.19.0" }} 
+      WAKUNODE_IMAGE: ${{ github.event.inputs.nim_wakunode_image || 'statusteam/nim-waku:v0.19.0' }}
     steps:
       - uses: actions/checkout@v3
 
@@ -94,7 +94,7 @@ jobs:
   node_optional:
     runs-on: ubuntu-latest
     env:
-      WAKUNODE_IMAGE: ${{ github.event.inputs.nim_wakunode_image || "statusteam/nim-waku:v0.19.0" }}
+      WAKUNODE_IMAGE: ${{ github.event.inputs.nim_wakunode_image || 'statusteam/nim-waku:v0.19.0' }}
 
     steps:
       - uses: actions/checkout@v3