diff --git a/cmd/root.go b/cmd/root.go
index 389c6f8..15e9909 100644
--- a/cmd/root.go
+++ b/cmd/root.go
@@ -21,18 +21,19 @@ examples and usage of using your application. For example:
 Cobra is a CLI library for Go that empowers applications.
 This application is a tool to generate the needed files
 to quickly create a Cobra application.`,
+		Args: cobra.MatchAll(cobra.ExactArgs(3)),
 		Run: func(cmd *cobra.Command, args []string) {
-			in, err := strconv.ParseFloat(args[0], 64)
+			in, err := strconv.ParseFloat(args[2], 64)
 			if err != nil {
 				fmt.Println(err.Error())
 				return
 			}
-			fromVal, err := u.Find(cmd.Flag("from").Value.String())
+			fromVal, err := u.Find(args[0])
 			if err != nil {
 				fmt.Println(err.Error())
 				return
 			}
-			toVal, err := u.Find(cmd.Flag("to").Value.String())
+			toVal, err := u.Find(args[1])
 			if err != nil {
 				fmt.Println(err.Error())
 				return
@@ -54,8 +55,3 @@ func Execute() {
 		os.Exit(1)
 	}
 }
-
-func init() {
-	rootCmd.PersistentFlags().StringVarP(&from, "from", "f", "c", "unit system to convert from")
-	rootCmd.PersistentFlags().StringVarP(&to, "to", "t", "f", "unit system to convert to")
-}