diff --git a/apps/openmw/mwworld/class.hpp b/apps/openmw/mwworld/class.hpp
index 6ab92319da..3c3b0e34be 100644
--- a/apps/openmw/mwworld/class.hpp
+++ b/apps/openmw/mwworld/class.hpp
@@ -21,7 +21,7 @@ namespace MWRender
 
 namespace MWMechanics
 {
-    struct CreatureStats;
+    class CreatureStats;
     class NpcStats;
     struct Movement;
 }
diff --git a/apps/openmw/mwworld/inventorystore.hpp b/apps/openmw/mwworld/inventorystore.hpp
index 45b3cab268..e55eca0ae7 100644
--- a/apps/openmw/mwworld/inventorystore.hpp
+++ b/apps/openmw/mwworld/inventorystore.hpp
@@ -7,7 +7,7 @@
 
 namespace MWMechanics
 {
-    struct NpcStats;
+    class NpcStats;
 }
 
 namespace MWWorld