diff --git a/src/errors/not-null-constraint-violation.js b/src/errors/not-null-constraint-violation.js
index 8981554..f858fda 100644
--- a/src/errors/not-null-constraint-violation.js
+++ b/src/errors/not-null-constraint-violation.js
@@ -6,7 +6,7 @@ const pgErrorCodes = require("pg-error-codes");
 const DatabaseError = require("../database-error.js");
 const getValues = require("../get-values");
 
-let NotNullConstraintViolationError = create(DatabaseError, "NotNullConstraintViolationError", { inheritsFrom: DatabaseError });
+let NotNullConstraintViolationError = create("NotNullConstraintViolationError", { inheritsFrom: DatabaseError });
 
 let messageRegex = /^(.+) - null value in column "([^"]+)" violates not-null constraint$/;