diff --git a/apps/openmw/mwrender/water.cpp b/apps/openmw/mwrender/water.cpp
index a8d601f11..dba85aeb7 100644
--- a/apps/openmw/mwrender/water.cpp
+++ b/apps/openmw/mwrender/water.cpp
@@ -15,6 +15,7 @@
 #include <osg/FrontFace>
 #include <osg/Shader>
 #include <osg/GLExtensions>
+#include <osg/UserDataContainer>
 
 #include <osgDB/ReadFile>
 
diff --git a/components/terrain/terraingrid.cpp b/components/terrain/terraingrid.cpp
index f40f3a388..4f0e464ce 100644
--- a/components/terrain/terraingrid.cpp
+++ b/components/terrain/terraingrid.cpp
@@ -2,6 +2,8 @@
 
 #include <memory>
 
+#include <osg/UserDataContainer>
+
 #include <OpenThreads/ScopedLock>
 
 #include <components/resource/resourcesystem.hpp>