diff --git a/commands/edit-number/math.js b/commands/edit-number/math.js
index 27b78fa3..8bcc0c14 100644
--- a/commands/edit-number/math.js
+++ b/commands/edit-number/math.js
@@ -2,12 +2,12 @@ const Command = require('../../structures/Command');
 const core = require('mathjs/number');
 const math = core.create(core.all);
 math.import({
-	import: function () { throw new Error('Function import is disabled') },
-	createUnit: function () { throw new Error('Function createUnit is disabled') },
-	evaluate: function () { throw new Error('Function evaluate is disabled') },
-	parse: function () { throw new Error('Function parse is disabled') },
-	simplify: function () { throw new Error('Function simplify is disabled') },
-	derivative: function () { throw new Error('Function derivative is disabled') }
+	import: () => { throw new Error('Function import is disabled'); },
+	createUnit: () => { throw new Error('Function createUnit is disabled'); },
+	evaluate: () => { throw new Error('Function evaluate is disabled'); },
+	parse: () => { throw new Error('Function parse is disabled'); },
+	simplify: () => { throw new Error('Function simplify is disabled'); },
+	derivative: () => { throw new Error('Function derivative is disabled'); }
   }, { override: true });
 
 module.exports = class MathCommand extends Command {