diff --git a/src/glut/glx/Makefile b/src/glut/glx/Makefile
index 6c6712ec9e5..0b43aeac30e 100644
--- a/src/glut/glx/Makefile
+++ b/src/glut/glx/Makefile
@@ -101,6 +101,7 @@ clean:
 	-rm -f *.lo
 	-rm -f *.la
 	-rm -rf .libs
+	-rm -rf depend
 
 
 depend: $(SOURCES)