diff --git a/app/pages/categories/view.html b/app/pages/categories/view.html
index cec5723..087f013 100644
--- a/app/pages/categories/view.html
+++ b/app/pages/categories/view.html
@@ -29,8 +29,8 @@
 			              		<input type="number" ng-model="rule.threshold" value="{{rule.threshold}}">
 			              	</div>
 			              	<div class="col s4">
-			              		<select>
-			              			<option ng-repeat="unit in units" value="{{unit}}" ng-selected="rule.units == unit" ng-model="rule.units">{{unit}}</option>
+			              		<select ng-model="rule.units">
+			              			<option ng-repeat="unit in units" value="{{unit}}" ng-selected="rule.units == unit">{{unit}}</option>
 			              		</select>
 			              	</div>
 			              </div>