diff --git a/src/Utils.js b/src/Utils.js
index 8c945069..c2d1f9a6 100644
--- a/src/Utils.js
+++ b/src/Utils.js
@@ -9,7 +9,7 @@ module.exports = {
 
             // Get display by index
             if (arg.indexOf("--monitornum=") === 0) {
-                validArgs.MonitorNum = (arg.substring(13) * 1) - 1
+                validArgs.MonitorNum = (arg.substring(13) * 1)
             }
 
             // Get display by ID (partial or whole)