--- frontend/common/src/Makefile.in.orig
+++ frontend/common/src/Makefile.in
@@ -418,7 +418,7 @@
 			-I$(top_srcdir)/frontend/common/src/win32 \
 			-I$(top_srcdir)/frontend/common/src/osx \
 			@WR_COMMON_INCLUDES@ @WR_BACKEND_INCLUDES@ @PULSE_CFLAGS@ \
-			@GTK_CFLAGS@ @GLIB_CFLAGS@ @GSTREAMER_CFLAGS@ \
+			@GTK_CFLAGS@ @GLIB_CFLAGS@ @GSTREAMER_CFLAGS@ @GNOME2_CFLAGS@ \
 			-I$(top_srcdir)/common/win32/harpoon/include
 
 all: all-recursive