diff --git a/common/data/src/main/java/org/thingsboard/server/common/data/relation/RelationEntityTypeFilter.java b/common/data/src/main/java/org/thingsboard/server/common/data/relation/RelationEntityTypeFilter.java
index 18786250a5..e8922c4c94 100644
--- a/common/data/src/main/java/org/thingsboard/server/common/data/relation/RelationEntityTypeFilter.java
+++ b/common/data/src/main/java/org/thingsboard/server/common/data/relation/RelationEntityTypeFilter.java
@@ -29,6 +29,8 @@ import java.util.List;
 @ApiModel
 public class RelationEntityTypeFilter {
 
+    public RelationEntityTypeFilter() {}
+
     public RelationEntityTypeFilter(String relationType, List<EntityType> entityTypes) {
         this(relationType, entityTypes, false);
     }