diff --git a/app/src/main/java/com/nextcloud/talk/activities/CallActivity.java b/app/src/main/java/com/nextcloud/talk/activities/CallActivity.java
index 49fcb6d6a..a2b2d972d 100644
--- a/app/src/main/java/com/nextcloud/talk/activities/CallActivity.java
+++ b/app/src/main/java/com/nextcloud/talk/activities/CallActivity.java
@@ -1746,8 +1746,10 @@ public class CallActivity extends CallBaseActivity {
         Log.d(TAG, "hangupNetworkCalls. shutDownView=" + shutDownView);
         int apiVersion = ApiUtils.getCallApiVersion(conversationUser, new int[]{ApiUtils.APIv4, 1});
 
-        callParticipantList.removeObserver(callParticipantListObserver);
-        callParticipantList.destroy();
+        if (callParticipantList != null) {
+            callParticipantList.removeObserver(callParticipantListObserver);
+            callParticipantList.destroy();
+        }
 
         ncApi.leaveCall(credentials, ApiUtils.getUrlForCall(apiVersion, baseUrl, roomToken))
             .subscribeOn(Schedulers.io())