diff --git a/indra/llmath/tests/m3math_test.cpp b/indra/llmath/tests/m3math_test.cpp
index 89058f23148ca29691831d44801933278e6aedc9..622ee28288be31040af2f82683cce0d21ec6b158 100644
--- a/indra/llmath/tests/m3math_test.cpp
+++ b/indra/llmath/tests/m3math_test.cpp
@@ -36,6 +36,11 @@
 #include "../v3dmath.h"
 
 #include "../test/lltut.h"
+
+#if LL_WINDOWS
+// disable unreachable code warnings caused by usage of skip.
+#pragma warning(disable: 4702)
+#endif
 
 namespace tut
 {