diff --git a/grails-app/assets/javascripts/forms.js b/grails-app/assets/javascripts/forms.js
index aa1ae1a..9e0bb60 100644
--- a/grails-app/assets/javascripts/forms.js
+++ b/grails-app/assets/javascripts/forms.js
@@ -455,7 +455,7 @@ function orEmptyArray(v) {
                 return value.value;
             }
             else if (value.expression) {
-                return ecodata.forms.expressionEvaluator.evaluate(value.expression, context);
+                return ecodata.forms.expressionEvaluator.evaluate(value.expression, context, value.decimalPlaces);
             }
         }
         else {