diff --git a/indra/cmake/00-Common.cmake b/indra/cmake/00-Common.cmake
index 518caf3443387505b5de38f3d42ac030c0ad8da9..7cbabb29f36bee4f8120dd861bdb9feb1b7924d8 100644
--- a/indra/cmake/00-Common.cmake
+++ b/indra/cmake/00-Common.cmake
@@ -64,7 +64,7 @@ if (WINDOWS)
 
   if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
     set(CMAKE_CXX_FLAGS_RELEASE
-        "${CMAKE_CXX_FLAGS_RELEASE} /O2 /Oi /Ot /Gy /Zi /MD /Ob2 /Oy- /Zc:inline /EHsc /fp:fast -D_ITERATOR_DEBUG_LEVEL=0")
+        "${CMAKE_CXX_FLAGS_RELEASE} /O2 /Oi /Ot /Gy /Zi /MD /Ob3 /Oy- /Zc:inline /EHsc /fp:fast -D_ITERATOR_DEBUG_LEVEL=0")
   elseif("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
     set(CMAKE_CXX_FLAGS_RELEASE
         "${CMAKE_CXX_FLAGS_RELEASE} /clang:-Ofast /clang:-ffast-math /Oi /Ot /Gy /Zi /MD /Ob2 /Oy- /Zc:inline /EHsc /fp:fast -D_ITERATOR_DEBUG_LEVEL=0")