diff --git a/mysql/tables/llx_societe.key.sql b/mysql/tables/llx_societe.key.sql
index c9925397c44..835b38d451b 100644
--- a/mysql/tables/llx_societe.key.sql
+++ b/mysql/tables/llx_societe.key.sql
@@ -23,4 +23,3 @@
 
 ALTER TABLE llx_societe ADD UNIQUE uk_societe_prefix_comm(prefix_comm);
 ALTER TABLE llx_societe ADD UNIQUE uk_societe_code_client(code_client);
-ALTER TABLE llx_societe ADD UNIQUE uk_societe_code_compta(code_compta);