diff --git a/docs/reference/builder.md b/docs/reference/builder.md
index f1838ee0ea..2da885d30d 100644
--- a/docs/reference/builder.md
+++ b/docs/reference/builder.md
@@ -834,7 +834,7 @@ does some more work:
 
 # USE the trap if you need to also do manual cleanup after the service is stopped,
 #     or need to start multiple services in the one container
-trap "echo TRAPed signal" HUP INT QUIT KILL TERM
+trap "echo TRAPed signal" HUP INT QUIT TERM
 
 # start service in background here
 /usr/sbin/apachectl start