diff --git a/examples/osgmultitexturecontrol/osgmultitexturecontrol.cpp b/examples/osgmultitexturecontrol/osgmultitexturecontrol.cpp
index fd732e4f4..f6d2edc2b 100644
--- a/examples/osgmultitexturecontrol/osgmultitexturecontrol.cpp
+++ b/examples/osgmultitexturecontrol/osgmultitexturecontrol.cpp
@@ -188,7 +188,7 @@ public:
     TerrainHandler(osgTerrain::Terrain* terrain):
         _terrain(terrain) {}
 
-    bool handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter& aa)
+    bool handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter& /*aa*/)
     {
         switch(ea.getEventType())
         {