diff --git a/src/components/views/dialogs/UserSettingsDialog.js b/src/components/views/dialogs/UserSettingsDialog.js
index 6e324ad3fb..d3ab2b8722 100644
--- a/src/components/views/dialogs/UserSettingsDialog.js
+++ b/src/components/views/dialogs/UserSettingsDialog.js
@@ -42,7 +42,7 @@ export default class UserSettingsDialog extends React.Component {
 
         this.state = {
             mjolnirEnabled: SettingsStore.isFeatureEnabled("feature_mjolnir"),
-        }
+        };
     }
 
     componentDidMount(): void {
diff --git a/src/components/views/messages/MessageEvent.js b/src/components/views/messages/MessageEvent.js
index 2e353794d7..0d22658884 100644
--- a/src/components/views/messages/MessageEvent.js
+++ b/src/components/views/messages/MessageEvent.js
@@ -88,7 +88,8 @@ module.exports = createReactClass({
         }
 
         if (SettingsStore.isFeatureEnabled("feature_mjolnir")) {
-            const allowRender = localStorage.getItem(`mx_mjolnir_render_${this.props.mxEvent.getRoomId()}__${this.props.mxEvent.getId()}`) === "true";
+            const key = `mx_mjolnir_render_${this.props.mxEvent.getRoomId()}__${this.props.mxEvent.getId()}`;
+            const allowRender = localStorage.getItem(key) === "true";
 
             if (!allowRender) {
                 const userDomain = this.props.mxEvent.getSender().split(':').slice(1).join(':');
diff --git a/src/components/views/messages/MjolnirBody.js b/src/components/views/messages/MjolnirBody.js
index 994642863b..d03c6c658d 100644
--- a/src/components/views/messages/MjolnirBody.js
+++ b/src/components/views/messages/MjolnirBody.js
@@ -32,7 +32,8 @@ export default class MjolnirBody extends React.Component {
         e.preventDefault();
         e.stopPropagation();
 
-        localStorage.setItem(`mx_mjolnir_render_${this.props.mxEvent.getRoomId()}__${this.props.mxEvent.getId()}`, "true");
+        const key = `mx_mjolnir_render_${this.props.mxEvent.getRoomId()}__${this.props.mxEvent.getId()}`;
+        localStorage.setItem(key, "true");
         this.props.onTileUpdate();
     };
 
diff --git a/src/components/views/settings/tabs/user/MjolnirUserSettingsTab.js b/src/components/views/settings/tabs/user/MjolnirUserSettingsTab.js
index a02ca2c570..608be0b129 100644
--- a/src/components/views/settings/tabs/user/MjolnirUserSettingsTab.js
+++ b/src/components/views/settings/tabs/user/MjolnirUserSettingsTab.js
@@ -194,7 +194,9 @@ export default class MjolnirUserSettingsTab extends React.Component {
         const AccessibleButton = sdk.getComponent('elements.AccessibleButton');
 
         const personalList = Mjolnir.sharedInstance().getPersonalList();
-        const lists = Mjolnir.sharedInstance().lists.filter(b => personalList ? personalList.roomId !== b.roomId : true);
+        const lists = Mjolnir.sharedInstance().lists.filter(b => {
+            return personalList? personalList.roomId !== b.roomId : true;
+        });
         if (!lists || lists.length <= 0) return <i>{_t("You are not subscribed to any lists")}</i>;
 
         const tiles = [];
@@ -239,19 +241,19 @@ export default class MjolnirUserSettingsTab extends React.Component {
                 <div className="mx_SettingsTab_heading">{_t("Ignored users")}</div>
                 <div className="mx_SettingsTab_section">
                     <div className='mx_SettingsTab_subsectionText'>
-                        <span className='warning'>{_t("⚠ These settings are meant for advanced users.")}</span><br/>
-                        <br/>
+                        <span className='warning'>{_t("⚠ These settings are meant for advanced users.")}</span><br />
+                        <br />
                         {_t(
                             "Add users and servers you want to ignore here. Use asterisks " +
                             "to have Riot match any characters. For example, <code>@bot:*</code> " +
                             "would ignore all users that have the name 'bot' on any server.",
                             {}, {code: (s) => <code>{s}</code>},
-                        )}<br/>
-                        <br/>
+                        )}<br />
+                        <br />
                         {_t(
                             "Ignoring people is done through ban lists which contain rules for " +
                             "who to ban. Subscribing to a ban list means the users/servers blocked by " +
-                            "that list will be hidden from you."
+                            "that list will be hidden from you.",
                         )}
                     </div>
                 </div>
diff --git a/src/mjolnir/BanList.js b/src/mjolnir/BanList.js
index 026005420a..60a924a52b 100644
--- a/src/mjolnir/BanList.js
+++ b/src/mjolnir/BanList.js
@@ -29,9 +29,15 @@ export const SERVER_RULE_TYPES = [RULE_SERVER, "org.matrix.mjolnir.rule.server"]
 export const ALL_RULE_TYPES = [...USER_RULE_TYPES, ...ROOM_RULE_TYPES, ...SERVER_RULE_TYPES];
 
 export function ruleTypeToStable(rule: string, unstable = true): string {
-    if (USER_RULE_TYPES.includes(rule)) return unstable ? USER_RULE_TYPES[USER_RULE_TYPES.length - 1] : RULE_USER;
-    if (ROOM_RULE_TYPES.includes(rule)) return unstable ? ROOM_RULE_TYPES[ROOM_RULE_TYPES.length - 1] : RULE_ROOM;
-    if (SERVER_RULE_TYPES.includes(rule)) return unstable ? SERVER_RULE_TYPES[SERVER_RULE_TYPES.length - 1] : RULE_SERVER;
+    if (USER_RULE_TYPES.includes(rule)) {
+        return unstable ? USER_RULE_TYPES[USER_RULE_TYPES.length - 1] : RULE_USER;
+    }
+    if (ROOM_RULE_TYPES.includes(rule)) {
+        return unstable ? ROOM_RULE_TYPES[ROOM_RULE_TYPES.length - 1] : RULE_ROOM;
+    }
+    if (SERVER_RULE_TYPES.includes(rule)) {
+        return unstable ? SERVER_RULE_TYPES[SERVER_RULE_TYPES.length - 1] : RULE_SERVER;
+    }
     return null;
 }
 
diff --git a/src/mjolnir/ListRule.js b/src/mjolnir/ListRule.js
index d33248d24c..1d472e06d6 100644
--- a/src/mjolnir/ListRule.js
+++ b/src/mjolnir/ListRule.js
@@ -22,7 +22,9 @@ export const RECOMMENDATION_BAN = "m.ban";
 export const RECOMMENDATION_BAN_TYPES = [RECOMMENDATION_BAN, "org.matrix.mjolnir.ban"];
 
 export function recommendationToStable(recommendation: string, unstable = true): string {
-    if (RECOMMENDATION_BAN_TYPES.includes(recommendation)) return unstable ? RECOMMENDATION_BAN_TYPES[RECOMMENDATION_BAN_TYPES.length - 1] : RECOMMENDATION_BAN;
+    if (RECOMMENDATION_BAN_TYPES.includes(recommendation)) {
+        return unstable ? RECOMMENDATION_BAN_TYPES[RECOMMENDATION_BAN_TYPES.length - 1] : RECOMMENDATION_BAN;
+    }
     return null;
 }
 
diff --git a/src/mjolnir/Mjolnir.js b/src/mjolnir/Mjolnir.js
index 5edfe3750e..9177c621d1 100644
--- a/src/mjolnir/Mjolnir.js
+++ b/src/mjolnir/Mjolnir.js
@@ -78,11 +78,13 @@ export class Mjolnir {
             const resp = await MatrixClientPeg.get().createRoom({
                 name: _t("My Ban List"),
                 topic: _t("This is your list of users/servers you have blocked - don't leave the room!"),
-                preset: "private_chat"
+                preset: "private_chat",
             });
             personalRoomId = resp['room_id'];
-            await SettingsStore.setValue("mjolnirPersonalRoom", null, SettingLevel.ACCOUNT, personalRoomId);
-            await SettingsStore.setValue("mjolnirRooms", null, SettingLevel.ACCOUNT, [personalRoomId, ...this._roomIds]);
+            await SettingsStore.setValue(
+                "mjolnirPersonalRoom", null, SettingLevel.ACCOUNT, personalRoomId);
+            await SettingsStore.setValue(
+                "mjolnirRooms", null, SettingLevel.ACCOUNT, [personalRoomId, ...this._roomIds]);
         }
         if (!personalRoomId) {
             throw new Error("Error finding a room ID to use");
diff --git a/src/utils/MatrixGlob.js b/src/utils/MatrixGlob.js
index b18e20ecf4..e07aaab541 100644
--- a/src/utils/MatrixGlob.js
+++ b/src/utils/MatrixGlob.js
@@ -50,5 +50,4 @@ export class MatrixGlob {
     test(val: string): boolean {
         return this._regex.test(val);
     }
-
 }