diff --git a/front/src/Phaser/Game/GameScene.ts b/front/src/Phaser/Game/GameScene.ts
index 1c3c1bd3..8dbf99b1 100644
--- a/front/src/Phaser/Game/GameScene.ts
+++ b/front/src/Phaser/Game/GameScene.ts
@@ -106,6 +106,12 @@ interface DeleteGroupEventInterface {
     groupId: number
 }
 
+interface MapProperty {
+    name: string;
+    type: string;
+    value: string|number;
+}
+
 const defaultStartLayerName = 'start';
 
 export class GameScene extends ResizableScene implements CenterListener {
@@ -183,6 +189,16 @@ export class GameScene extends ResizableScene implements CenterListener {
         })
     }
 
+    public getMapProperty(name: string, type: string, dflt: any = null): any {
+        if (!Array.isArray(this.mapFile.properties)) {
+            return dflt;
+        }
+
+        const properties: MapProperty[] = this.mapFile.properties;
+        const prop = properties.find((prop: MapProperty) => prop.type === type && prop.name === name)
+        return prop ? prop.value : dflt;
+    }
+
     //hook preload scene
     preload(): void {
         addLoader(this);
@@ -1207,7 +1223,7 @@ export class GameScene extends ResizableScene implements CenterListener {
     }
 
     public startJitsi(roomName: string, jwt?: string): void {
-        const jitsiUrl = getMapProperty(this.mapFile, 'jitsiUrl', 'string', JITSI_URL);
+        const jitsiUrl = this.getMapProperty('jitsiUrl', 'string', JITSI_URL);
         jitsiFactory.start(jitsiUrl, roomName, this.playerName, jwt);
         this.connection.setSilent(true);
         mediaManager.hideGameOverlay();