diff --git a/src/tools/pgindent/README b/src/tools/pgindent/README
index 44050c01b3..b674a2913e 100644
--- a/src/tools/pgindent/README
+++ b/src/tools/pgindent/README
@@ -28,6 +28,7 @@ This can format all PostgreSQL *.c and *.h files, but excludes *.y, and
 6) Do a full test build:
 
 	run configure
+	pg_ctl stop
 	gmake -C src install
 	gmake -C contrib install
 	gmake installcheck-world