diff --git a/src/runtime/Makefile b/src/runtime/Makefile
index 52c876bd4..479c08b5d 100644
--- a/src/runtime/Makefile
+++ b/src/runtime/Makefile
@@ -653,6 +653,9 @@ handle_vendor:
 	go mod vendor
 	go mod verify
 
+vendor: handle_vendor
+	./hack/tree_status.sh
+
 clean:
 	$(QUIET_CLEAN)rm -f \
 		$(CONFIGS) \
diff --git a/src/runtime/hack/tree_status.sh b/src/runtime/hack/tree_status.sh
new file mode 100755
index 000000000..482710774
--- /dev/null
+++ b/src/runtime/hack/tree_status.sh
@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+#
+# Copyright 2021 Red Hat Inc.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+set -e
+
+STATUS=$(git status --porcelain)
+if [[ -z $STATUS ]]; then
+    echo "tree is clean"
+else
+    echo "tree is dirty, please commit all changes"
+    echo ""
+    echo "$STATUS"
+    git diff
+    exit 1
+fi