diff --git a/apps/openmw/mwmechanics/mechanicsmanager.hpp b/apps/openmw/mwmechanics/mechanicsmanager.hpp
index c74495795a..2ffc580aac 100644
--- a/apps/openmw/mwmechanics/mechanicsmanager.hpp
+++ b/apps/openmw/mwmechanics/mechanicsmanager.hpp
@@ -1,5 +1,5 @@
-#ifndef GAME_MWMECHANICS_PTR_H
-#define GAME_MWMECHANICS_PTR_H
+#ifndef GAME_MWMECHANICS_MECHANICSMANAGER_H
+#define GAME_MWMECHANICS_MECHANICSMANAGER_H
 
 namespace ESMS
 {