diff --git a/debian/patches/config_instances b/debian/patches/config_instances
index 367f451..8280dd5 100644
--- a/debian/patches/config_instances
+++ b/debian/patches/config_instances
@@ -22,7 +22,7 @@ This patch header follows DEP-3: http://dep.debian.net/deps/dep3/
 +
 +if (file_exists('/etc/pnp4nagios/config.icinga.php')) {
 +    include '/etc/pnp4nagios/config.icinga.php';
-+} else if (file_exists('/etc/pnp4nagios/config.nagios3.php')) {
-+    include '/etc/pnp4nagios/config.nagios3.php';
++} else if (file_exists('/etc/pnp4nagios/config.nagios4.php')) {
++    include '/etc/pnp4nagios/config.nagios4.php';
 +}
  ?>