diff --git a/migrator/migrator.go b/migrator/migrator.go
index df4dd0a4..b2cd4c9f 100644
--- a/migrator/migrator.go
+++ b/migrator/migrator.go
@@ -87,7 +87,7 @@ func (m Migrator) FullDataTypeOf(field *schema.Field) (expr clause.Expr) {
 			m.Dialector.BindVarTo(defaultStmt, defaultStmt, field.DefaultValueInterface)
 			expr.SQL += " DEFAULT " + m.Dialector.Explain(defaultStmt.SQL.String(), field.DefaultValueInterface)
 		} else if field.DefaultValue != "(-)" {
-			expr.SQL += " DEFAULT " + field.DefaultValue
+			expr.SQL += ` DEFAULT "` + field.DefaultValue +`"`
 		}
 	}