diff --git a/dao/src/main/java/org/thingsboard/server/dao/sql/query/DefaultQueryLogComponent.java b/dao/src/main/java/org/thingsboard/server/dao/sql/query/DefaultQueryLogComponent.java
index d66bccebc8..f879fb21c7 100644
--- a/dao/src/main/java/org/thingsboard/server/dao/sql/query/DefaultQueryLogComponent.java
+++ b/dao/src/main/java/org/thingsboard/server/dao/sql/query/DefaultQueryLogComponent.java
@@ -105,6 +105,6 @@ public class DefaultQueryLogComponent implements QueryLogComponent {
             return "'" + valueParameter + "'";
         }
 
-        return valueParameter.toString();
+        return String.valueOf(valueParameter);
     }
 }