diff --git a/app/src/main/java/de/joel/zoomhelper/MeetingsController.java b/app/src/main/java/de/joel/zoomhelper/MeetingsController.java
index 41ddfed..4fe5797 100644
--- a/app/src/main/java/de/joel/zoomhelper/MeetingsController.java
+++ b/app/src/main/java/de/joel/zoomhelper/MeetingsController.java
@@ -17,13 +17,15 @@ import java.io.ObjectOutputStream;
 import java.util.ArrayList;
 
 public class MeetingsController {
-    private Context context;
+    private final Context context;
+    private final Activity activity;
 
     public MeetingsController(Context context) {
         this.context = context;
+        this.activity = (Activity) context;
     }
 
-    Activity activity = (Activity) context;
+
 
     public String meetingsToString(ArrayList<Meeting> listMeetings) {
         ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();