diff --git a/action.yaml b/action.yaml
index 1bdbc43..8145174 100644
--- a/action.yaml
+++ b/action.yaml
@@ -29,7 +29,7 @@ runs:
         [[ -z "$(shopt globstar 2> /dev/null)" ]] && echo 'Shell does not support globstar' || shopt -s globstar
         : "${SUMMARY_FILE:=$GITHUB_STEP_SUMMARY}"
         gawk --file "$GITHUB_ACTION_PATH/summary.gawk" --sandbox -- ${{ inputs.path }} >> "$SUMMARY_FILE"
-        echo "{summary-file}={$SUMMARY_FILE}" >> "$GITHUB_OUTPUT"
+        echo "summary-file=$SUMMARY_FILE" >> "$GITHUB_OUTPUT"
       shell: bash
       env:
         SUMMARY_FILE: ${{ inputs.summary-file }}