diff --git a/cmd/root.go b/cmd/root.go
index 8a24142..f407e81 100644
--- a/cmd/root.go
+++ b/cmd/root.go
@@ -127,6 +127,8 @@ func init() {
 
 	// Cobra also supports local flags, which will only run
 	// when this action is called directly.
-	rootCmd.Flags().StringVarP(&preset, "preset", "p", "", "Preset file to use")
-	rootCmd.Flags().StringVarP(&scriptPath, "script", "s", "", "Script file to use")
+	rootCmd.Flags().StringVarP(&preset, "preset", "p", "", "preset file to use")
+	rootCmd.Flags().StringVarP(&scriptPath, "script", "s", "", "script file to use")
+
+	rootCmd.MarkFlagsMutuallyExclusive("preset", "script")
 }