1 files changed, 6 insertions, 1 deletions
diff --git a/src/arguments/abbreviatedNumber.ts b/src/arguments/abbreviatedNumber.ts
index 9da7063..99f6df7 100644
--- a/src/arguments/abbreviatedNumber.ts
+++ b/src/arguments/abbreviatedNumber.ts
@@ -2,5 +2,10 @@ import { BushArgumentTypeCaster } from '@lib';
 import numeral = require('numeral');
 
 export const abbreviatedNumberTypeCaster: BushArgumentTypeCaster = (_, phrase): number | null => {
-	return numeral(phrase?.toLowerCase()).value();
+	if (!phrase) return null;
+	const num = numeral(phrase?.toLowerCase()).value();
+
+	if (!num || isNaN(num)) return null;
+
+	return num;
 };