diff --git a/devstack/plugin.sh b/devstack/plugin.sh
index 65ae602..0b73b2f 100644
--- a/devstack/plugin.sh
+++ b/devstack/plugin.sh
@@ -11,9 +11,13 @@ function install_tobiko_deps {
 
 
 function configure_libguestfs_tools {
+    local target_path
     if is_ubuntu; then
-        sudo dpkg-statoverride --update --add root root 0644 \
-            /boot/vmlinuz-`uname -r`
+        target_path=/boot/vmlinuz-`uname -r`
+        if ! dpkg-statoverride --list "${target_path}"; then
+            sudo dpkg-statoverride --update --add root root 0644 \
+                "${target_path}"
+        fi
     fi
 }