diff --git a/htdocs/install/mysql/tables/llx_product_attribute_combination.sql b/htdocs/install/mysql/tables/llx_product_attribute_combination.sql
index 361588c10b4db..2e80a4b2af261 100644
--- a/htdocs/install/mysql/tables/llx_product_attribute_combination.sql
+++ b/htdocs/install/mysql/tables/llx_product_attribute_combination.sql
@@ -18,11 +18,11 @@
 
 CREATE TABLE llx_product_attribute_combination
 (
-  rowid INT PRIMARY KEY NOT NULL AUTO_INCREMENT,
-  fk_product_parent INT NOT NULL,
-  fk_product_child INT NOT NULL,
-  variation_price FLOAT NOT NULL,
-  variation_price_percentage INT NULL,
-  variation_weight FLOAT NOT NULL,
-  entity INT DEFAULT 1 NOT NULL
+  rowid INTEGER PRIMARY KEY NOT NULL AUTO_INCREMENT,
+  fk_product_parent INTEGER NOT NULL,
+  fk_product_child INTEGER NOT NULL,
+  variation_price DOUBLE(24,8) NOT NULL,
+  variation_price_percentage INTEGER NULL,
+  variation_weight REAL NOT NULL,
+  entity INTEGER DEFAULT 1 NOT NULL
 )ENGINE=innodb;
diff --git a/htdocs/install/mysql/tables/llx_product_pricerules.sql b/htdocs/install/mysql/tables/llx_product_pricerules.sql
index 22d2b9926cf44..4089d2f3a6066 100644
--- a/htdocs/install/mysql/tables/llx_product_pricerules.sql
+++ b/htdocs/install/mysql/tables/llx_product_pricerules.sql
@@ -18,9 +18,9 @@
 
 CREATE TABLE llx_product_pricerules
 (
-    rowid INT PRIMARY KEY NOT NULL AUTO_INCREMENT,
-    level INT NOT NULL, -- Which price level is this rule for?
-    fk_level INT NOT NULL, -- Price variations are made over price of X
-    var_percent FLOAT NOT NULL, -- Price variation over based price
-    var_min_percent FLOAT NOT NULL -- Min price discount over general price
+    rowid INTEGER PRIMARY KEY NOT NULL AUTO_INCREMENT,
+    level INTEGER NOT NULL, -- Which price level is this rule for?
+    fk_level INTEGER NOT NULL, -- Price variations are made over price of X
+    var_percent REAL NOT NULL, -- Price variation over based price
+    var_min_percent REAL NOT NULL -- Min price discount over general price
 )ENGINE=innodb;