diff --git a/godoc-current.txt b/godoc-current.txt
index 13dcbe2bca..6afd244f25 100644
--- a/godoc-current.txt
+++ b/godoc-current.txt
@@ -205,6 +205,9 @@ func ShowAppHelpAndExit(c *Context, exitCode int)
     ShowAppHelpAndExit - Prints the list of subcommands for the app and exits
     with exit code.
 
+func ShowCommandCompletions(ctx *Context, command string)
+    ShowCommandCompletions prints the custom completions for a given command
+
 func ShowCommandHelp(ctx *Context, command string) error
     ShowCommandHelp prints help for the given command
 
diff --git a/help.go b/help.go
index c40cacbad6..c7b8f55a58 100644
--- a/help.go
+++ b/help.go
@@ -314,6 +314,19 @@ func ShowCompletions(cCtx *Context) {
 	}
 }
 
+// ShowCommandCompletions prints the custom completions for a given command
+func ShowCommandCompletions(ctx *Context, command string) {
+	c := ctx.Command.Command(command)
+	if c != nil {
+		if c.BashComplete != nil {
+			c.BashComplete(ctx)
+		} else {
+			DefaultCompleteWithFlags(c)(ctx)
+		}
+	}
+
+}
+
 // printHelpCustom is the default implementation of HelpPrinterCustom.
 //
 // The customFuncs map will be combined with a default template.FuncMap to
diff --git a/testdata/godoc-v2.x.txt b/testdata/godoc-v2.x.txt
index 13dcbe2bca..6afd244f25 100644
--- a/testdata/godoc-v2.x.txt
+++ b/testdata/godoc-v2.x.txt
@@ -205,6 +205,9 @@ func ShowAppHelpAndExit(c *Context, exitCode int)
     ShowAppHelpAndExit - Prints the list of subcommands for the app and exits
     with exit code.
 
+func ShowCommandCompletions(ctx *Context, command string)
+    ShowCommandCompletions prints the custom completions for a given command
+
 func ShowCommandHelp(ctx *Context, command string) error
     ShowCommandHelp prints help for the given command