diff --git a/utils/functions.js b/utils/functions.js
index 5527c57..15b1f13 100644
--- a/utils/functions.js
+++ b/utils/functions.js
@@ -266,8 +266,17 @@ function sanitize(string = "", forceLowercase = true, strict = false) {
  * @returns {Boolean} True if the content is a valid course file array
  */
 function isCourseFileValid(content) {
-	if (content.length !== 7) return false;
-	if (typeof content[0] !== "object" || typeof content[1] !== "object" || typeof content[2] !== "string" || typeof content[3] !== "number" || typeof content[4] !== "string" || typeof content[5] !== "object" || typeof content[6] !== "number") return false;
+	if (content.length !== 6 || content.length !== 7) return false;
+	if (
+		typeof content[0] !== "object" ||
+		typeof content[1] !== "object" ||
+		typeof content[2] !== "string" ||
+		typeof content[3] !== "number" ||
+		typeof content[4] !== "string" ||
+		typeof content[5] !== "object" ||
+		(content[6] && typeof content[6] !== "number")
+	)
+		return false;
 
 	return true;
 }