diff --git a/src/osgPlugins/dw/Makefile b/src/osgPlugins/dw/Makefile
index 48eda0c74..f29883226 100644
--- a/src/osgPlugins/dw/Makefile
+++ b/src/osgPlugins/dw/Makefile
@@ -4,7 +4,7 @@ include $(TOPDIR)/Make/makedefs
 CXXFILES =\
         ReaderWriterDW.cpp\
 
-LIBS  += $(OSG_LIBS) $(OTHER_LIBS)
+LIBS  += $(OSG_LIBS) $(GL_LIBS) $(OTHER_LIBS)
 
 TARGET_BASENAME = dw
 include $(TOPDIR)/Make/cygwin_plugin_def