diff --git a/uhepp_org/uhepp_api/serializers.py b/uhepp_org/uhepp_api/serializers.py
index ca3d4f4f5fa10f619ffc8e125b2685eb8b914199..4f9c1644a5e37f77331c55305339552ce1cb1543 100644
--- a/uhepp_org/uhepp_api/serializers.py
+++ b/uhepp_org/uhepp_api/serializers.py
@@ -87,7 +87,7 @@ class PlotSerializer(serializers.HyperlinkedModelSerializer):
 
             jsonschema.validate(value, schema=schema)
         except Exception as e:
-            raise serializers.ValidationError("JSON schema validation error: %s" % e)
+            raise serializers.ValidationError("JSON schema validation error")
 
         return value