diff --git a/indra/llcommon/llstacktrace.cpp b/indra/llcommon/llstacktrace.cpp
index bbf0e1e141..7084fe6f60 100644
--- a/indra/llcommon/llstacktrace.cpp
+++ b/indra/llcommon/llstacktrace.cpp
@@ -33,7 +33,10 @@
 #include <sstream>
 
 #include "llwin32headerslean.h"
-#include "Dbghelp.h"
+#pragma warning (push)
+#pragma warning (disable:4091) // a microsoft header has warnings. Very nice.
+#include <dbghelp.h>
+#pragma warning (pop)
 
 typedef USHORT NTAPI RtlCaptureStackBackTrace_Function(
     IN ULONG frames_to_skip,