diff --git a/.github/actions/get-modified-packages-docker/action.yaml b/.github/actions/get-modified-packages-docker/action.yaml
index d3e0b4eadfc80..ab5db6a2b98e4 100644
--- a/.github/actions/get-modified-packages-docker/action.yaml
+++ b/.github/actions/get-modified-packages-docker/action.yaml
@@ -35,13 +35,13 @@ runs:
     - name: Get modified packages
       id: get-modified-packages
       run: |
-        modified_packages=${docker run --shm-size 1G \
+        modified_packages=$(docker run --shm-size 1G \
           -v ${{ github.workspace }}:/workspace \
           -w /workspace \
           -e GITHUB_ACTION_PATH \
           -v ${GITHUB_ACTION_PATH}:${GITHUB_ACTION_PATH} \
           ubuntu:22.04 \
-          /bin/bash -c "cat ${GITHUB_ACTION_PATH}/get-modified-packages.sh"}
+          /bin/bash -c "cat ${GITHUB_ACTION_PATH}/get-modified-packages.sh")
         echo "modified-packages=$modified_packages" >> $GITHUB_OUTPUT
       shell: bash