diff --git a/catalogue/common_catalogue_schema.sql b/catalogue/common_catalogue_schema.sql
index 7f4be017a77a4403c95e2acd69091ae3b176a1e6..cc131a3e0e4d1bf40ca90c009325d5c74ecc7d0d 100644
--- a/catalogue/common_catalogue_schema.sql
+++ b/catalogue/common_catalogue_schema.sql
@@ -259,5 +259,5 @@ CREATE TABLE USAGESTATS (
 );
 CREATE TABLE EXPERIMENTS (
  NAME                     VARCHAR(20),
- GID                      NUMERIC(6, 0) CONSTRAINT EXPERIMENTS_GID_PK PRIMARY KEY
+ GID                      UINT32TYPE CONSTRAINT EXPERIMENTS_GID_PK PRIMARY KEY
 );