diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/DiscoveryActivity.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/DiscoveryActivity.java
index 38172916f..68af2b5d5 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/DiscoveryActivity.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/DiscoveryActivity.java
@@ -293,6 +293,7 @@ public class DiscoveryActivity extends AbstractGBActivity implements AdapterView
 
     private void handleDeviceBonded() {
         if (bondingDevice == null) {
+            LOG.error("deviceCandidate was null! Can't handle bonded device!");
             return;
         }