diff --git a/src/osgViewer/GNUmakefile b/src/osgViewer/GNUmakefile
index 99328486d..ba5ce57bc 100644
--- a/src/osgViewer/GNUmakefile
+++ b/src/osgViewer/GNUmakefile
@@ -28,6 +28,7 @@ ifeq ($(OS),Darwin)
 else
   ifeq ($(OS),MINGW)
      CXXFILES += GraphicsWindowWin32.cpp
+     LIBS += -lgdi32
   else
     ifeq ($(OS),CYGWIN)
        CXXFILES += GraphicsWindowWin32.cpp