diff --git a/contrib/completion/bash/docker b/contrib/completion/bash/docker
index 0fd35e51bc..d1984a5552 100644
--- a/contrib/completion/bash/docker
+++ b/contrib/completion/bash/docker
@@ -1929,6 +1929,7 @@ _docker_daemon() {
 		--containerd
 		--default-gateway
 		--default-gateway-v6
+		--default-shm-size
 		--default-ulimit
 		--dns
 		--dns-search