diff --git a/scripts/server/native/gtac.js b/scripts/server/native/gtac.js
index fb8b2407..043228e4 100644
--- a/scripts/server/native/gtac.js
+++ b/scripts/server/native/gtac.js
@@ -4554,7 +4554,7 @@ function takePlayerCash(client, amount) {
 		return false;
 	}
 
-    if(isNan(amount)) {
+    if(isNaN(amount)) {
         return false;
     }