diff --git a/unity-command/action.yaml b/unity-command/action.yaml
index 3e7d406..05042a3 100644
--- a/unity-command/action.yaml
+++ b/unity-command/action.yaml
@@ -55,7 +55,7 @@ runs:
       command: ${{ inputs.command }}
       unityBuilder: ${{ inputs.unityBuilder }}
   - name: "Remove temporary image."
-    if: ${{ inputs.removeContainer == "true" }}
+    if: ${{ inputs.removeContainer == 'true' }}
     run: |
       docker image rm ${{ inputs.imageTag }}
     shell: bash