I am having trouble displaying custom message upon validation in my AngularJS app. 

Below is my code:

```
<div class="row">
    <div class="input-field col s12">
       <input id="description" rows="3" class="materialize-textarea no-pad-bot no-pad-top" ng-model="Description" ng-required="isValidationRequired()" ng-minlength="5"></input>
        <span class="help-inline" ng-show="submitted && frm1.description.$error.required">Comments are required</span>

     </div>
 </div>

 <input type="submit" class="white-text waves-effect btn" value="Enter" ng-click="submitted=true" />

```

The above works but the message displayed is "Please fill out this field". Which is not the message I specified. I want my own custom message displayed. I cannot find anything wrong with my code. Can anyone help point me in the right direction.