diff --git a/src/db/migration/V20170510_1120__mantis8900.sql b/src/db/migration/V20170510_1120__mantis8900.sql
new file mode 100644
index 000000000..a12ca43db
--- /dev/null
+++ b/src/db/migration/V20170510_1120__mantis8900.sql
@@ -0,0 +1,7 @@
+declare
+    object_exists exception;
+    pragma exception_init (object_exists , -00955);
+begin
+	execute immediate 'ALTER TABLE PTOVTA_COMISSAO ADD (INDRETERCOMISSAO NUMBER(1))';
+    exception when object_exists then null;
+end;