diff --git a/src/db/migration/V20200826_1715__mantis20278.sql b/src/db/migration/V20200826_1715__mantis20278.sql
new file mode 100644
index 000000000..3a06fc049
--- /dev/null
+++ b/src/db/migration/V20200826_1715__mantis20278.sql
@@ -0,0 +1,7 @@
+declare 
+  column_exists exception;
+  pragma exception_init (column_exists , -01430);
+begin 
+  execute immediate 'ALTER TABLE CATEGORIA_DESCUENTO MODIFY (ASIENTOSRESERVADOS VARCHAR2(100 BYTE))';
+  exception when column_exists then null;
+end;
\ No newline at end of file
diff --git a/src/db/postgresql/migration/V20200826_1715__mantis20278.sql b/src/db/postgresql/migration/V20200826_1715__mantis20278.sql
new file mode 100644
index 000000000..e4a9dc271
--- /dev/null
+++ b/src/db/postgresql/migration/V20200826_1715__mantis20278.sql
@@ -0,0 +1,5 @@
+DO $$
+BEGIN
+  ALTER TABLE CATEGORIA_DESCUENTO MODIFY (ASIENTOSRESERVADOS VARCHAR2(100 BYTE));
+END
+$$;