diff --git a/app/pages/categories/view.html b/app/pages/categories/view.html
index 8b1862c..cec5723 100644
--- a/app/pages/categories/view.html
+++ b/app/pages/categories/view.html
@@ -30,7 +30,7 @@
 			              	</div>
 			              	<div class="col s4">
 			              		<select>
-			              			<option ng-repeat="unit in units" value="{{unit}}" ng-selected="rule.units == unit">{{unit}}</option>
+			              			<option ng-repeat="unit in units" value="{{unit}}" ng-selected="rule.units == unit" ng-model="rule.units">{{unit}}</option>
 			              		</select>
 			              	</div>
 			              </div>