diff --git a/rhodecode/lib/dbmigrate/migrate/changeset/ansisql.py b/rhodecode/lib/dbmigrate/migrate/changeset/ansisql.py
--- a/rhodecode/lib/dbmigrate/migrate/changeset/ansisql.py
+++ b/rhodecode/lib/dbmigrate/migrate/changeset/ansisql.py
@@ -94,6 +94,7 @@ class ANSIColumnGenerator(AlterTableVisi
 
         table = self.start_alter_table(column)
         self.append("ADD ")
+
         self.append(self.get_column_specification(column))
 
         for cons in column.constraints: