diff --git a/Makefile b/Makefile
index 1cd94ad47997f75451b48601b74c70eb7d867764..8c5b064bb521b0b6600e749f22d332546524e6c4 100755
--- a/Makefile
+++ b/Makefile
@@ -479,8 +479,8 @@ clean:
 	@$(MAKE) -C $(TTOOL_DOC_SOCLIB_INSTALLATIONGUIDE_DIR) clean
 	@rm -rf $(TTOOL_TARGET_RELEASE)
 	@rm -f $(TTOOL_STD_RELEASE)/*.tar
+	@rm -rf $(TTOOL_BUILD)	
 
 ultraclean: clean
-	@rm -rf $(TTOOL_BUILD)
 	@rm -rf $(TTOOL_DOC_HTML)
 	@rm -rf $(TTOOL_STD_RELEASE)