diff --git a/pkg/cmd/pr/close/close.go b/pkg/cmd/pr/close/close.go
index 20db4960c..f4cc442c2 100644
--- a/pkg/cmd/pr/close/close.go
+++ b/pkg/cmd/pr/close/close.go
@@ -35,9 +35,9 @@ func NewCmdClose(f *cmdutil.Factory, runF func(*CloseOptions) error) *cobra.Comm
 	}
 
 	cmd := &cobra.Command{
-		Use:   "close [<number> | <url> | <branch>]",
+		Use:   "close {<number> | <url> | <branch>}",
 		Short: "Close a pull request",
-		Args:  cobra.MaximumNArgs(1),
+		Args:  cobra.ExactArgs(1),
 		RunE: func(cmd *cobra.Command, args []string) error {
 			// support `-R, --repo` override
 			opts.BaseRepo = f.BaseRepo
diff --git a/pkg/cmd/pr/reopen/reopen.go b/pkg/cmd/pr/reopen/reopen.go
index 8283e87ef..135e341fa 100644
--- a/pkg/cmd/pr/reopen/reopen.go
+++ b/pkg/cmd/pr/reopen/reopen.go
@@ -30,9 +30,9 @@ func NewCmdReopen(f *cmdutil.Factory, runF func(*ReopenOptions) error) *cobra.Co
 	}
 
 	cmd := &cobra.Command{
-		Use:   "reopen [<number> | <url> | <branch>]",
+		Use:   "reopen {<number> | <url> | <branch>}",
 		Short: "Reopen a pull request",
-		Args:  cobra.MaximumNArgs(1),
+		Args:  cobra.ExactArgs(1),
 		RunE: func(cmd *cobra.Command, args []string) error {
 			// support `-R, --repo` override
 			opts.BaseRepo = f.BaseRepo