diff --git a/contrib/completion/bash/docker b/contrib/completion/bash/docker
index a5586d97df..f2be79872d 100644
--- a/contrib/completion/bash/docker
+++ b/contrib/completion/bash/docker
@@ -887,6 +887,7 @@ _docker_daemon() {
 				dm.fs
 				dm.loopdatasize
 				dm.loopmetadatasize
+				dm.min_free_space
 				dm.mkfsarg
 				dm.mountopt
 				dm.override_udev_sync_check