diff --git a/indra/newview/ao.cpp b/indra/newview/ao.cpp
index 30e0940366..5e2ce21785 100644
--- a/indra/newview/ao.cpp
+++ b/indra/newview/ao.cpp
@@ -37,7 +37,6 @@
 #include "llviewercontrol.h"
 #include "llviewerinventory.h"
 #include "utilitybar.h"
-#include <boost/graph/graph_concepts.hpp>
 
 FloaterAO::FloaterAO(const LLSD& key)
 :	LLTransientDockableFloater(NULL,true,key),LLEventTimer(10.f),