diff --git a/auto/install b/auto/install
index d884487..c764fdd 100644
--- a/auto/install
+++ b/auto/install
@@ -215,4 +215,6 @@
 	test -f $NGX_PID_PATH.oldbin
 
 	kill -QUIT \`cat $NGX_PID_PATH.oldbin\`
+
+.PHONY:	build install modules upgrade
 END