diff --git a/action.yml b/action.yml
index af35320..f743e0a 100644
--- a/action.yml
+++ b/action.yml
@@ -46,7 +46,7 @@ runs:
         -s $SINCE \
         -o $OUTPUT_DIR \
         -f $FILENAME \
-        -e $EXCLUDE
+        -e "$EXCLUDE"
       shell: bash
       env:
         BEFORE:   ${{ inputs.before }}