diff --git a/action.yaml b/action.yaml
index a7c949a..3746ad2 100644
--- a/action.yaml
+++ b/action.yaml
@@ -56,14 +56,14 @@ runs:
       uses: docker/setup-qemu-action@v3.6.0
     - name: Setup Root CA
       run: |
-        echo "${{ inputs.registry-certificate }}" | tee ca.pem
+        echo "${{ inputs.registry-certificate }}" | tee rootca.pem
     - name: Setup Docker BuildX
       uses: docker/setup-buildx-action@v3.10.0
       with:
         #buildkitd-flags: --debug
         config-inline: |
           [registry."${{ inputs.push-registry }}"]
-            ca = ["ca.pem"]
+            ca = ["rootca.pem"]
     - name: Login to registry
       uses: docker/login-action@v3.4.0
       with: