diff --git a/client/core/src/filters/currency.js b/client/core/src/filters/currency.js
index c3b9c3873..f96963882 100644
--- a/client/core/src/filters/currency.js
+++ b/client/core/src/filters/currency.js
@@ -7,7 +7,7 @@ import ngModule from '../module';
  */
 export default function currency() {
     return function(input, symbol, fractionSize) {
-        if (input === undefined || input === '')
+        if (input === undefined || input === null || input === '')
             return undefined;
         if (typeof input == 'number' && fractionSize)
             input = input.toFixed(fractionSize);