diff --git a/public/app/features/alerting/partials/alert_tab.html b/public/app/features/alerting/partials/alert_tab.html
index bb6fe7547b2..07ff28dcddb 100644
--- a/public/app/features/alerting/partials/alert_tab.html
+++ b/public/app/features/alerting/partials/alert_tab.html
@@ -52,9 +52,9 @@
 					</div>
 					<div class="gf-form">
 						<metric-segment-model property="conditionModel.evaluator.type" options="ctrl.evalFunctions" custom="false" css-class="query-keyword" on-change="ctrl.evaluatorTypeChanged(conditionModel.evaluator)"></metric-segment-model>
-						<input class="gf-form-input max-width-7" type="number" ng-hide="conditionModel.evaluator.params.length === 0" ng-model="conditionModel.evaluator.params[0]" ng-change="ctrl.evaluatorParamsChanged()"></input>
+						<input class="gf-form-input max-width-7" type="number" step="any" ng-hide="conditionModel.evaluator.params.length === 0" ng-model="conditionModel.evaluator.params[0]" ng-change="ctrl.evaluatorParamsChanged()"></input>
             <label class="gf-form-label query-keyword" ng-show="conditionModel.evaluator.params.length === 2">TO</label>
-            <input class="gf-form-input max-width-7" type="number" ng-if="conditionModel.evaluator.params.length === 2" ng-model="conditionModel.evaluator.params[1]" ng-change="ctrl.evaluatorParamsChanged()"></input>
+            <input class="gf-form-input max-width-7" type="number" step="any" ng-if="conditionModel.evaluator.params.length === 2" ng-model="conditionModel.evaluator.params[1]" ng-change="ctrl.evaluatorParamsChanged()"></input>
 					</div>
 					<div class="gf-form">
 						<label class="gf-form-label">