diff --git a/htdocs/install/mysql/migration/3.7.0-3.8.0.sql b/htdocs/install/mysql/migration/3.7.0-3.8.0.sql
index 63bc1a8d7a3..891f79edc0f 100755
--- a/htdocs/install/mysql/migration/3.7.0-3.8.0.sql
+++ b/htdocs/install/mysql/migration/3.7.0-3.8.0.sql
@@ -350,7 +350,7 @@ ALTER TABLE llx_projet ADD COLUMN opp_amount double(24,8) DEFAULT NULL;
 
 -- Module AskPriceSupplier --
 CREATE TABLE llx_askpricesupplier (
-  rowid integer NOT NULL AUTO_INCREMENT PRIMARY KEY,
+  rowid integer AUTO_INCREMENT PRIMARY KEY,
   ref varchar(30) NOT NULL,
   entity integer NOT NULL DEFAULT '1',
   ref_ext varchar(255) DEFAULT NULL,
@@ -389,7 +389,7 @@ CREATE TABLE llx_askpricesupplier (
 ) ENGINE=innodb;
 
 CREATE TABLE llx_askpricesupplierdet (
-  rowid integer NOT NULL AUTO_INCREMENT PRIMARY KEY,
+  rowid integer AUTO_INCREMENT PRIMARY KEY,
   fk_askpricesupplier integer NOT NULL,
   fk_parent_line integer DEFAULT NULL,
   fk_product integer DEFAULT NULL,
diff --git a/htdocs/install/mysql/tables/llx_supplier_proposal.sql b/htdocs/install/mysql/tables/llx_supplier_proposal.sql
index 458cebe1d33..904c5f256a8 100644
--- a/htdocs/install/mysql/tables/llx_supplier_proposal.sql
+++ b/htdocs/install/mysql/tables/llx_supplier_proposal.sql
@@ -16,7 +16,7 @@
 -- ========================================================================
 
 CREATE TABLE llx_supplier_proposal (
-  rowid integer NOT NULL AUTO_INCREMENT PRIMARY KEY,
+  rowid integer AUTO_INCREMENT PRIMARY KEY,
   ref varchar(30) NOT NULL,
   entity integer NOT NULL DEFAULT 1,
   ref_ext varchar(255) DEFAULT NULL,
diff --git a/htdocs/install/mysql/tables/llx_supplier_proposaldet.sql b/htdocs/install/mysql/tables/llx_supplier_proposaldet.sql
index 4b669f60ba3..211502686ee 100644
--- a/htdocs/install/mysql/tables/llx_supplier_proposaldet.sql
+++ b/htdocs/install/mysql/tables/llx_supplier_proposaldet.sql
@@ -16,7 +16,7 @@
 -- ========================================================================
 
 CREATE TABLE llx_supplier_proposaldet (
-  rowid integer NOT NULL AUTO_INCREMENT PRIMARY KEY,
+  rowid integer AUTO_INCREMENT PRIMARY KEY,
   fk_supplier_proposal integer NOT NULL,
   fk_parent_line integer DEFAULT NULL,
   fk_product integer DEFAULT NULL,