diff --git a/action.yml b/action.yml
index f141c363..fc2f039a 100644
--- a/action.yml
+++ b/action.yml
@@ -127,9 +127,12 @@ runs:
           ALL_CHANGED=$(echo "$ALL_CHANGED" | sed -E 's/(${{ inputs.separator }})$//')
           ALL_MODIFIED_FILES=$(echo "$ALL_MODIFIED_FILES" | sed -E 's/(${{ inputs.separator }})$//')
           
-          SEP_INPUT_FILES=$(echo $INPUT_FILES || sed -E 's/ /(${{ inputs.separator }})/g')
+          OUTPUT_ALL_MODIFIED_FILES=$(echo $ALL_MODIFIED_FILES | sed "s/(${{ inputs.separator }})/ /g")
           
-          if [[ $ALL_MODIFIED_FILES -eq $SEP_INPUT_FILES ]]; then
+          IFS=$'\n' SORTED_INPUT_FILES=($(sort <<<"${INPUT_FILES[*]}"))
+          IFS=$'\n' SORTED_OUTPUT_ALL_MODIFIED_FILES=($(sort <<<"${OUTPUT_ALL_MODIFIED_FILES[*]}"))
+          
+          if [[ $SORTED_INPUT_FILES -eq $SORTED_OUTPUT_ALL_MODIFIED_FILES ]]; then
             echo "::set-output name=has_changed::true"
           else
             echo "::set-output name=has_changed::false"