diff --git a/Makefile b/Makefile
index bfa94e0ade5a5e2ed17dcf416fdf79bddb23509c..d5558883328d30182ef44b52d4ed0f2b4df2aaa5 100644
--- a/Makefile
+++ b/Makefile
@@ -29,6 +29,7 @@ doc: $(DOCS)
 		$(HSRCS)
 
 clean:
+	rm -rf $(HDDIR)
 	rm -f $(HPROGS)
 	rm -f *.o *.prof *.ps *.stat *.aux *.hi
 	cd Ganeti/HTools && rm -f *.o *.prof *.ps *.stat *.aux *.hi