diff --git a/src/osg/Texture.cpp b/src/osg/Texture.cpp
index 63aade119..07d766877 100644
--- a/src/osg/Texture.cpp
+++ b/src/osg/Texture.cpp
@@ -17,6 +17,7 @@
 #include <osg/Notify>
 #include <osg/GLU>
 #include <osg/Timer>
+#include <osg/ApplicationUsage>
 
 #include <OpenThreads/ScopedLock>
 #include <OpenThreads/Mutex>
@@ -42,6 +43,8 @@ using namespace osg;
 
 // #define DO_TIMING
 
+ApplicationUsageProxy Texture_e0(ApplicationUsage::ENVIRONMENTAL_VARIABLE,"OSG_MAX_TEXTURE_SIZE","Set the maximum size of textures.");
+
 unsigned int Texture::s_numberTextureReusedLastInLastFrame = 0;
 unsigned int Texture::s_numberNewTextureInLastFrame = 0;
 unsigned int Texture::s_numberDeletedTextureInLastFrame = 0;