diff --git a/migration/20.10/2010.sql b/migration/20.10/2010.sql
index 57851cc3456278cb256de2e8372c061fca3b2380..be3f3ac1b76c2f82d3fdd8a3545b9e46eb06d80d 100755
--- a/migration/20.10/2010.sql
+++ b/migration/20.10/2010.sql
@@ -9,7 +9,7 @@ UPDATE parameters SET param_value_string = '20.10.1' WHERE id = 'database_versio
 
 DROP VIEW IF EXISTS res_view_letterbox;
 
-CREATE EXTENSION unaccent;
+CREATE EXTENSION IF NOT EXISTS unaccent;
 
 /* SENDMAIL */
 DROP TABLE IF EXISTS sendmail;