diff --git a/htdocs/install/mysql/tables/llx_accounting_category_account-accounting.key.sql b/htdocs/install/mysql/tables/llx_accounting_category_account-accounting.key.sql
index 7c4a543ebc0..a45941697f2 100644
--- a/htdocs/install/mysql/tables/llx_accounting_category_account-accounting.key.sql
+++ b/htdocs/install/mysql/tables/llx_accounting_category_account-accounting.key.sql
@@ -14,13 +14,13 @@
 -- You should have received a copy of the GNU General Public License
 -- along with this program. If not, see <https://www.gnu.org/licenses/>.
 --
--- Table for connect accounting category with accounting account
+-- Table for a relation n-n between c_accounting_category and accounting_account
 -- ===================================================================
 
 ALTER TABLE llx_accounting_category_account ADD INDEX idx_accounting_category_account_fk_accounting_category (fk_accounting_category);
-ALTER TABLE llx_accounting_category_account ADD CONSTRAINT fk_accounting_category_account_fk_accounting_category FOREIGN KEY (fk_accounting_category) REFERENCES llx_c_accounting_category (rowid);
+--ALTER TABLE llx_accounting_category_account ADD CONSTRAINT fk_accounting_category_account_fk_accounting_category FOREIGN KEY (fk_accounting_category) REFERENCES llx_c_accounting_category (rowid);
 
 ALTER TABLE llx_accounting_category_account ADD INDEX idx_accounting_category_account_fk_accounting_account (fk_accounting_account);
-ALTER TABLE llx_accounting_category_account ADD CONSTRAINT fk_accounting_category_account_fk_accounting_account FOREIGN KEY (fk_accounting_account) REFERENCES llx_accounting_account (rowid);
+--ALTER TABLE llx_accounting_category_account ADD CONSTRAINT fk_accounting_category_account_fk_accounting_account FOREIGN KEY (fk_accounting_account) REFERENCES llx_accounting_account (rowid);
 
 ALTER TABLE llx_accounting_category_account ADD UNIQUE INDEX uk_accounting_category_account (fk_accounting_category, fk_accounting_account);