diff --git a/cmd/list.go b/cmd/list.go
index db4aaec..e5b3e90 100644
--- a/cmd/list.go
+++ b/cmd/list.go
@@ -32,7 +32,7 @@ import (
 var listCmd = &cobra.Command{
 	Use:   "list",
 	Short: "A brief description of your command",
-	Long:  "",
+	Args:  cobra.NoArgs,
 	Run: func(cmd *cobra.Command, args []string) {
 		err := tmux.ListProjects()
 		if err != nil {
diff --git a/cmd/new.go b/cmd/new.go
index f31e970..5a48923 100644
--- a/cmd/new.go
+++ b/cmd/new.go
@@ -32,11 +32,8 @@ import (
 var newCmd = &cobra.Command{
 	Use:   "new [NAME]",
 	Short: "Create a new project",
+	Args:  cobra.ExactArgs(1),
 	Run: func(cmd *cobra.Command, args []string) {
-		if len(args) < 1 {
-			fmt.Println("Provide a project name")
-			return
-		}
 		err := tmux.NewProject(args[0])
 		if err != nil {
 			fmt.Println("Unable to create project:", err)
diff --git a/cmd/start.go b/cmd/start.go
index 8a556e7..68881f0 100644
--- a/cmd/start.go
+++ b/cmd/start.go
@@ -22,8 +22,6 @@ THE SOFTWARE.
 package cmd
 
 import (
-	"fmt"
-
 	"github.com/spf13/cobra"
 	"github.com/walkah/workon/tmux"
 )
@@ -32,12 +30,8 @@ import (
 var startCmd = &cobra.Command{
 	Use:   "start [PROJECT]",
 	Short: "Start working on a project",
-	Long:  "",
+	Args:  cobra.ExactArgs(1),
 	Run: func(cmd *cobra.Command, args []string) {
-		if len(args) < 1 {
-			fmt.Println("No project given")
-			return
-		}
 		tmux.StartProject(args[0])
 	},
 }