diff --git a/components/resource/texturemanager.cpp b/components/resource/texturemanager.cpp
index 750dfaab70..d29aa28122 100644
--- a/components/resource/texturemanager.cpp
+++ b/components/resource/texturemanager.cpp
@@ -2,6 +2,7 @@
 
 #include <osgDB/Registry>
 #include <osg/GLExtensions>
+#include <osg/Version>
 
 #include <stdexcept>