diff --git a/rd_ui/app/views/alerts/edit.html b/rd_ui/app/views/alerts/edit.html
index b026548b5..79b439a25 100644
--- a/rd_ui/app/views/alerts/edit.html
+++ b/rd_ui/app/views/alerts/edit.html
@@ -44,7 +44,7 @@
               </div>
               <label class="control-label col-md-2">Reference</label>
               <div class="col-md-4">
-                <input type="number" class="form-control" ng-model="alert.options.value" placeholder="reference value"
+                <input type="number" step="any" class="form-control" ng-model="alert.options.value" placeholder="reference value"
                        required/>
               </div>
             </div>