diff --git a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/query/input/Entity.java b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/query/input/Entity.java
index 117e2d38b..8909fb017 100644
--- a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/query/input/Entity.java
+++ b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/query/input/Entity.java
@@ -90,7 +90,7 @@ public class Entity {
                     && Objects.nonNull(normal) && Objects.nonNull(destNormal);
             case EndpointRelation:
                 return Objects.nonNull(serviceName) && Objects.nonNull(endpointName)
-                    && Objects.nonNull(serviceInstanceName) && Objects.nonNull(endpointName)
+                    && Objects.nonNull(endpointName) && Objects.nonNull(destEndpointName)
                     && Objects.nonNull(normal) && Objects.nonNull(destNormal);
             default:
                 return false;