diff --git a/.github/actions/build_squashfs_image/action.yml b/.github/actions/build_squashfs_image/action.yml
index a4a1e81de..8cc6e60b7 100644
--- a/.github/actions/build_squashfs_image/action.yml
+++ b/.github/actions/build_squashfs_image/action.yml
@@ -26,11 +26,19 @@ runs:
         path: dist
 
     - name: set temporary variables
+      id: set-vars
       shell: bash
       run: |
-        export DOCKER_IMAGE=otaclient-${{ inputs.platform_suffix }}:${{ inputs.version }}
-        export DOCKER_CONTAINER=otaclient-${{ inputs.platform_suffix }}_v${{ inputs.version }}
-        export SQUASHFS=otaclient-${{ inputs.platform_suffix }}_v${{ inputs.version }}.squashfs
+        echo "DOCKER_IMAGE=your-docker-image-name" >> $GITHUB_ENV
+        echo "DOCKER_CONTAINER=otaclient-${{ inputs.platform_suffix }}_v${{ inputs.version }}" >> $GITHUB_ENV
+        echo "SQUASHFS=otaclient-${{ inputs.platform_suffix }}_v${{ inputs.version }}.squashfs" >> $GITHUB_ENV
+
+    - name: debug
+      shell: bash
+      run: |
+        echo $DOCKER_IMAGE
+        echo $DOCKER_CONTAINER
+        echo $SQUASHFS
 
     - name: build docker image
       shell: bash
@@ -42,17 +50,17 @@ runs:
           --build-arg=UBUNTU_BASE=${{ inputs.base_image }} \
           --build-arg=OTACLIENT_VERSION=${{ inputs.version }} \
           --build-arg=OTACLIENT_WHL=${{ inputs.whl }} \
-          -t ${{ env.DOCKER_IMAGE }} \
+          -t ${DOCKER_IMAGE} \
           --output type=docker \
           .
         popd
-        rm docker/app_img/${{ env.OTACLIENT_WHL }}
+        rm docker/app_img/${{ inputs.whl }}
 
     - name: export squashfs image
       shell: bash
       run: |
-        docker create --name ${{ env.DOCKER_CONTAINER }} ${{ env.DOCKER_IMAGE }}
-        docker export ${{ env.DOCKER_CONTAINER }} | mksquashfs - ${{ env.SQUASHFS }} \
+        docker create --name ${DOCKER_CONTAINER} ${DOCKER_IMAGE}
+        docker export ${DOCKER_CONTAINER} | mksquashfs - ${SQUASHFS} \
             -tar -b 1M \
             -mkfs-time 1729810800 \
             -all-time 1729810800 \
@@ -61,4 +69,4 @@ runs:
             -progress \
             -comp zstd \
             -Xcompression-level 22
-        mv ${{ env.SQUASHFS }} dist/
+        mv ${SQUASHFS} dist/