diff --git a/ui/src/Components/SilenceModal/AlertManagerInput/index.js b/ui/src/Components/SilenceModal/AlertManagerInput/index.js
index 08adab106..a567b7359 100644
--- a/ui/src/Components/SilenceModal/AlertManagerInput/index.js
+++ b/ui/src/Components/SilenceModal/AlertManagerInput/index.js
@@ -7,16 +7,13 @@ import { observer } from "mobx-react";
 import ReactSelect from "react-select";
 
 import { AlertStore } from "Stores/AlertStore";
-import { SilenceFormStore } from "Stores/SilenceFormStore";
+import {
+  SilenceFormStore,
+  AlertmanagerClustersToOption
+} from "Stores/SilenceFormStore";
 import { MultiSelect, ReactSelectStyles } from "Components/MultiSelect";
 import { ValidationError } from "Components/MultiSelect/ValidationError";
 
-const AlertmanagerClustersToOption = clusterDict =>
-  Object.entries(clusterDict).map(([clusterID, clusterMembers]) => ({
-    label: clusterMembers.join(" | "),
-    value: clusterMembers
-  }));
-
 const AlertManagerInput = observer(
   class AlertManagerInput extends MultiSelect {
     static propTypes = {
diff --git a/ui/src/Stores/SilenceFormStore.js b/ui/src/Stores/SilenceFormStore.js
index 76ca3a5ed..5bb676945 100644
--- a/ui/src/Stores/SilenceFormStore.js
+++ b/ui/src/Stores/SilenceFormStore.js
@@ -19,6 +19,12 @@ const NewEmptyMatcher = () => {
 
 const MatcherValueToObject = value => ({ label: value, value: value });
 
+const AlertmanagerClustersToOption = clusterDict =>
+  Object.entries(clusterDict).map(([clusterID, clusterMembers]) => ({
+    label: clusterMembers.join(" | "),
+    value: clusterMembers
+  }));
+
 const SilenceFormStage = Object.freeze({
   UserInput: "form",
   Preview: "preview",
@@ -155,12 +161,10 @@ class SilenceFormStore {
 
       fillFormFromSilence(alertmanager, silence) {
         this.silenceID = silence.id;
-        this.alertmanagers = [
-          {
-            label: alertmanager.name,
-            value: alertmanager.publicURI
-          }
-        ];
+
+        this.alertmanagers = AlertmanagerClustersToOption({
+          [alertmanager.cluster]: alertmanager.clusterMembers
+        });
 
         const matchers = [];
         for (const m of silence.matchers) {
@@ -214,8 +218,8 @@ class SilenceFormStore {
               m.values.length > 1
                 ? `(${m.values.map(v => v.value).join("|")})`
                 : m.values.length === 1
-                  ? m.values[0].value
-                  : "",
+                ? m.values[0].value
+                : "",
             isRegex: m.isRegex
           })),
           startsAt: this.startsAt
@@ -270,5 +274,6 @@ export {
   SilenceFormStore,
   SilenceFormStage,
   NewEmptyMatcher,
-  MatcherValueToObject
+  MatcherValueToObject,
+  AlertmanagerClustersToOption
 };