diff --git a/Makefile.in b/Makefile.in
index b34f5f24db..7e06e21064 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -405,8 +405,8 @@ win32install: preinstall
 			$(top_srcdir)/include/wx/msw/*.bmp \
 			$(top_srcdir)/include/wx/msw/wx.rc \
 				$(includedir)/wx/msw
-	$(INSTALL_DATA) $(top_srcdir)/include/wx/msw/gnuwin32/*.h $(include)/wx/msw/gnuwin32
-	$(INSTALL_DATA) $(top_srcdir)/include/wx/msw/gnuwin32/gl/*.h $(include)/wx/msw/gnuwin32/gl
+	$(INSTALL_DATA) $(top_srcdir)/include/wx/msw/gnuwin32/*.h $(includedir)/wx/msw/gnuwin32
+	$(INSTALL_DATA) $(top_srcdir)/include/wx/msw/gnuwin32/gl/*.h $(includedir)/wx/msw/gnuwin32/gl
 
 # this is the real install target: copies the library, wx-config and the
 # headers to the installation directory