diff --git a/plugin.sh b/plugin.sh
index 1d9dc11..1326ff0 100644
--- a/plugin.sh
+++ b/plugin.sh
@@ -41,6 +41,7 @@ if [ "${PLUGIN_MERGE:-false}" = true ]; then
         PLUGIN_DELETE_SOURCE=false;
     fi
     
+    ID=$(echo $RES | jq '.number')
     curl --request POST \
     --url "https://$PLUGIN_DOMAIN/api/v1/repos/$DRONE_REPO/pulls/$ID/merge" \
     --header 'Content-Type: application/json' \