diff --git a/mayan/apps/mayan_statistics/models.py b/mayan/apps/mayan_statistics/models.py
index 92b913efad..c6090e691e 100644
--- a/mayan/apps/mayan_statistics/models.py
+++ b/mayan/apps/mayan_statistics/models.py
@@ -25,7 +25,7 @@ class StatisticResult(models.Model):
         return self.slug
 
     def get_data(self):
-        return json.loads(self.serialize_data)
+        return json.loads(s=self.serialize_data)
 
     def store_data(self, data):
         self.serialize_data = json.dumps(data)