diff --git a/src/osg/DisplaySettings.cpp b/src/osg/DisplaySettings.cpp
index 8ebae0d3f..8731c10b9 100644
--- a/src/osg/DisplaySettings.cpp
+++ b/src/osg/DisplaySettings.cpp
@@ -24,7 +24,7 @@ using namespace osg;
 using namespace std;
 
 #if defined(WIN32) && !defined(__CYGWIN__)
-#include<Windows.h>
+#include<windows.h>
 extern "C" { OSG_EXPORT DWORD NvOptimusEnablement=0x00000001; }
 #else
 extern "C" { int NvOptimusEnablement=0x00000001; }
diff --git a/src/osgPlugins/osc/CMakeLists.txt b/src/osgPlugins/osc/CMakeLists.txt
index 6bf61277c..0529e17e5 100644
--- a/src/osgPlugins/osc/CMakeLists.txt
+++ b/src/osgPlugins/osc/CMakeLists.txt
@@ -35,7 +35,7 @@ if(WIN32 AND NOT ANDROID)
         ip/win32/NetworkingUtils.cpp
         ip/win32/UdpSocket.cpp
     )
-    SET(TARGET_EXTERNAL_LIBRARIES "${TARGET_EXTERNAL_LIBRARIES};Ws2_32.lib;winmm")
+    SET(TARGET_EXTERNAL_LIBRARIES "${TARGET_EXTERNAL_LIBRARIES};ws2_32.lib;winmm")
 ELSE()
     SET(TARGET_SRC
         ${TARGET_SRC}