diff --git a/index.html b/index.html
index cbf96d3..360419f 100644
--- a/index.html
+++ b/index.html
@@ -40,7 +40,7 @@ <h1>Angular.js Query Builder</h1>
                             <select ng-options="t.name as t.name for t in fields" ng-model="rule.field" class="form-control input-sm"></select>
                             <select style="margin-left: 5px" ng-options="c.name as c.name for c in conditions" ng-model="rule.condition" class="form-control input-sm"></select>
                             <input style="margin-left: 5px" type="text" ng-model="rule.data" class="form-control input-sm"/>
-                            <button style="margin-left: 5px" ng-click="removeCondition($index)" class="btn btn-sm btn-danger"><span class="glyphicon glyphicon-minus-sign"></span></button>
+                            <button style="margin-left: 5px" ng-if="$index >0" ng-click="removeCondition($index)" class="btn btn-sm btn-danger"><span class="glyphicon glyphicon-minus-sign"></span></button>
                         </div>
                     </div>
                 </div>