diff --git a/src/osg/State.cpp b/src/osg/State.cpp
index d4838211d..b6a920df9 100644
--- a/src/osg/State.cpp
+++ b/src/osg/State.cpp
@@ -84,6 +84,7 @@ void State::reset()
     _projection = _identity;
     
     dirtyAllVertexArrays();
+    setActiveTextureUnit(0);
 }
 
 void State::pushStateSet(const StateSet* dstate)