diff --git a/source/Makefile.am b/source/Makefile.am
index ab8d942..5f2a90d 100644
--- a/source/Makefile.am
+++ b/source/Makefile.am
@@ -1,6 +1,6 @@
 ## Process this file with automake to produce Makefile.in
 
-INCLUDES=	$(GGI_CFLAGS) $(SVGA_CFLAGS) $(X_CFLAGS) $(GLX_CFLAGS)
+INCLUDES=	-I$(top_srcdir)/include $(GGI_CFLAGS) $(SVGA_CFLAGS) $(X_CFLAGS) $(GLX_CFLAGS)
 
 bin_PROGRAMS =	@TARGETS@