diff --git a/back/src/Model/GameRoom.ts b/back/src/Model/GameRoom.ts
index 9b0fef45..e7f23549 100644
--- a/back/src/Model/GameRoom.ts
+++ b/back/src/Model/GameRoom.ts
@@ -224,19 +224,18 @@ export class GameRoom {
         } else {
             // If the user is part of a group:
             //  should he leave the group?
-            const leaveIfOutOfRadius = (user: User) => {
-                if (user.group === undefined) {
+            const users = user.group.getUsers().filter((u) => !u.hasFollowers() && !u.following);
+            users.forEach((foreignUser: User) => {
+                if (foreignUser.group === undefined) {
                     return;
                 }
-                const usrPos = user.getPosition();
-                const grpPos = user.group.getPosition();
+                const usrPos = foreignUser.getPosition();
+                const grpPos = foreignUser.group.getPosition();
                 const distance = GameRoom.computeDistanceBetweenPositions(usrPos, grpPos);
                 if (distance > this.groupRadius) {
-                    this.leaveGroup(user);
+                    this.leaveGroup(foreignUser);
                 }
-            };
-            const users = user.group.getUsers().filter((u) => !u.hasFollowers() && !u.following);
-            users.forEach((foreignUser) => leaveIfOutOfRadius(foreignUser));
+            });
         }
     }
 
diff --git a/back/src/Model/Group.ts b/back/src/Model/Group.ts
index db9f6305..08d1d21e 100644
--- a/back/src/Model/Group.ts
+++ b/back/src/Model/Group.ts
@@ -156,7 +156,7 @@ export class Group implements Movable {
     /**
      * A group can have at most one person leading the way in it.
      */
-    get leader(): User|undefined {
+    get leader(): User | undefined {
         for (const user of this.users) {
             if (user.hasFollowers()) {
                 return user;
diff --git a/back/src/Model/User.ts b/back/src/Model/User.ts
index 4619ce2c..50f140fc 100644
--- a/back/src/Model/User.ts
+++ b/back/src/Model/User.ts
@@ -6,7 +6,9 @@ import { PositionNotifier } from "_Model/PositionNotifier";
 import { ServerDuplexStream } from "grpc";
 import {
     BatchMessage,
-    CompanionMessage, FollowAbortMessage, FollowConfirmationMessage,
+    CompanionMessage,
+    FollowAbortMessage,
+    FollowConfirmationMessage,
     PusherToBackMessage,
     ServerToClientMessage,
     SubMessage,
@@ -18,7 +20,7 @@ export type UserSocket = ServerDuplexStream<PusherToBackMessage, ServerToClientM
 export class User implements Movable {
     public listenedZones: Set<Zone>;
     public group?: Group;
-    private _following: User|undefined;
+    private _following: User | undefined;
     private followedBy: Set<User> = new Set<User>();
 
     public constructor(
diff --git a/back/src/Services/SocketManager.ts b/back/src/Services/SocketManager.ts
index d7178d3d..bafce4d3 100644
--- a/back/src/Services/SocketManager.ts
+++ b/back/src/Services/SocketManager.ts
@@ -846,12 +846,13 @@ export class SocketManager {
     handleFollowConfirmationMessage(room: GameRoom, user: User, message: FollowConfirmationMessage) {
         const leader = room.getUserById(message.getLeader());
         if (!leader) {
-            console.info('Could not find user "', message.getLeader(), '" while handling a follow confirmation in room "', room.roomUrl,'". Maybe the user just left.');
+            const message = `Could not follow user "{message.getLeader()}" in room "{room.roomUrl}".`;
+            console.info(message, "Maybe the user just left.");
             return;
         }
 
-        // By security, we look at the group leader. If the group leader is NOT the leader in the message, everybody should
-        // stop following the group leader (to avoid having 2 group leaders)
+        // By security, we look at the group leader. If the group leader is NOT the leader in the message,
+        // everybody should stop following the group leader (to avoid having 2 group leaders)
         if (user?.group?.leader && user?.group?.leader !== leader) {
             user?.group?.leader?.stopLeading();
         }
diff --git a/back/tests/PositionNotifierTest.ts b/back/tests/PositionNotifierTest.ts
index 955ed40f..1aaf2e13 100644
--- a/back/tests/PositionNotifierTest.ts
+++ b/back/tests/PositionNotifierTest.ts
@@ -26,14 +26,14 @@ describe("PositionNotifier", () => {
             y: 500,
             moving: false,
             direction: 'down'
-        }, false, [], positionNotifier, {} as UserSocket, [], null, 'foo', []);
+        }, false, positionNotifier, {} as UserSocket, [], null, 'foo', []);
 
         const user2 = new User(2, 'test', '10.0.0.2', {
             x: -9999,
             y: -9999,
             moving: false,
             direction: 'down'
-        }, false, [], positionNotifier, {} as UserSocket, [], null, 'foo', []);
+        }, false, positionNotifier, {} as UserSocket, [], null, 'foo', []);
 
         positionNotifier.addZoneListener({} as ZoneSocket, 0, 0);
         positionNotifier.addZoneListener({} as ZoneSocket, 0, 1);
@@ -101,14 +101,14 @@ describe("PositionNotifier", () => {
             y: 500,
             moving: false,
             direction: 'down'
-        }, false, [], positionNotifier, {} as UserSocket, [], null, 'foo', []);
+        }, false, positionNotifier, {} as UserSocket, [], null, 'foo', []);
 
         const user2 = new User(2, 'test', '10.0.0.2', {
             x: 0,
             y: 0,
             moving: false,
             direction: 'down'
-        }, false, [], positionNotifier, {} as UserSocket, [], null, 'foo', []);
+        }, false, positionNotifier, {} as UserSocket, [], null, 'foo', []);
 
         const listener = {} as ZoneSocket;
         positionNotifier.addZoneListener(listener, 0, 0);