diff --git a/gdk/makefile b/gdk/makefile
index e2eb4ebb7..9acb18090 100755
--- a/gdk/makefile
+++ b/gdk/makefile
@@ -5,7 +5,7 @@ all:
 	@echo "'make unix' is broken for now."
 
 windows:
-	$(CSC) /unsafe /target:library /out:gdk-sharp.dll /recurse:*.cs
+	$(CSC) /unsafe /target:library /r:../glib/glib-sharp.dll /out:gdk-sharp.dll /recurse:*.cs
 
 unix:
 	@echo "'make unix' is broken for now."
diff --git a/gtk/makefile b/gtk/makefile
index 909d0cd7b..01c70b88c 100755
--- a/gtk/makefile
+++ b/gtk/makefile
@@ -5,7 +5,7 @@ all:
 	@echo "'make unix' is broken for now."
 
 windows:
-	$(CSC) /unsafe /target:library /r:../glib/glib-sharp.dll /out:gtk-sharp.dll /recurse:*.cs
+	$(CSC) /unsafe /target:library /r:../glib/glib-sharp.dll /r:../gdk/gdk-sharp.dll /out:gtk-sharp.dll /recurse:*.cs
 
 unix:
 	@echo "'make unix' is broken for now."