fix compilation
diff --git a/src/glx/x11/Makefile b/src/glx/x11/Makefile
index b404727..c99bcf2 100644
--- a/src/glx/x11/Makefile
+++ b/src/glx/x11/Makefile
@@ -33,7 +33,7 @@
 	  dri_glx.c \
 	  XF86dri.c
 
-include $(TOP)/src/mesa/sources
+include $(TOP)/src/mesa/sources.mak
 
 MESA_GLAPI_ASM_SOURCES = $(addprefix $(TOP)/src/mesa/, $(GLAPI_ASM_SOURCES))
 MESA_GLAPI_SOURCES = $(addprefix $(TOP)/src/mesa/, $(GLAPI_SOURCES))