diff --git a/commands.go b/commands.go
index 4c9f9aedc2..fd314c8d66 100644
--- a/commands.go
+++ b/commands.go
@@ -683,7 +683,7 @@ func (cli *DockerCli) CmdInspect(args ...string) error {
 }
 
 func (cli *DockerCli) CmdTop(args ...string) error {
-	cmd := Subcmd("top", "CONTAINER", "Lookup the running processes of a container")
+	cmd := Subcmd("top", "CONTAINER [ps OPTIONS]", "Lookup the running processes of a container")
 	if err := cmd.Parse(args); err != nil {
 		return nil
 	}
diff --git a/docs/sources/commandline/cli.rst b/docs/sources/commandline/cli.rst
index 8f778c32de..c85c602117 100644
--- a/docs/sources/commandline/cli.rst
+++ b/docs/sources/commandline/cli.rst
@@ -729,7 +729,7 @@ The main process inside the container will receive SIGTERM, and after a grace pe
 
 ::
 
-    Usage: docker top CONTAINER
+    Usage: docker top CONTAINER [ps OPTIONS]
 
     Lookup the running processes of a container
 
diff --git a/server.go b/server.go
index a58daf54e1..db185f8151 100644
--- a/server.go
+++ b/server.go
@@ -416,7 +416,11 @@ func (srv *Server) ContainerTop(name, ps_args string) (*APITop, error) {
 			}
 			// no scanner.Text because we skip container id
 			for scanner.Scan() {
-				words = append(words, scanner.Text())
+				if i != 0 && len(words) == len(procs.Titles) {
+					words[len(words)-1] = fmt.Sprintf("%s %s", words[len(words)-1], scanner.Text())
+				} else {
+					words = append(words, scanner.Text())
+				}
 			}
 			if i == 0 {
 				procs.Titles = words