diff --git a/src/lib/Categories.mjs b/src/lib/Categories.mjs
index b9c3bbb..1d5827c 100644
--- a/src/lib/Categories.mjs
+++ b/src/lib/Categories.mjs
@@ -9,7 +9,7 @@ class Categories {
 	constructor(in_filename) {
 		this.filename = in_filename;
 		if(!fs.existsSync(this.filename))
-			throw new Exception(`Error: No such file or directory '${this.filename}' (it should exist and have 1 category name per line).`);
+			throw new Error(`Error: No such file or directory '${this.filename}' (it should exist and have 1 category name per line).`);
 		
 		/**
 		 * A list of category names.