diff --git a/application/src/test/java/org/thingsboard/server/edge/TelemetryEdgeTest.java b/application/src/test/java/org/thingsboard/server/edge/TelemetryEdgeTest.java
index 36d9ed5308..a9ec11e9b1 100644
--- a/application/src/test/java/org/thingsboard/server/edge/TelemetryEdgeTest.java
+++ b/application/src/test/java/org/thingsboard/server/edge/TelemetryEdgeTest.java
@@ -223,8 +223,10 @@ public class TelemetryEdgeTest extends AbstractEdgeTest {
                     device.getId().getId(), EdgeEventType.DEVICE, timeseriesEntityData);
             edgeEventService.saveAsync(failedEdgeEvent).get();
 
+            // add unique body to avoid merge and filter by device id in edge service (mergeAndFilterDownlinkDuplicates)
+            JsonNode uniqueBody = JacksonUtil.toJsonNode("{\"idx\":" + idx + "}");
             EdgeEvent successEdgeEvent = constructEdgeEvent(tenantId, edge.getId(), EdgeEventActionType.UPDATED,
-                    device.getId().getId(), EdgeEventType.DEVICE, null);
+                    device.getId().getId(), EdgeEventType.DEVICE, uniqueBody);
             edgeEventService.saveAsync(successEdgeEvent).get();
         }