diff --git a/src/projects/dtos/create-project.input.ts b/src/projects/dtos/create-project.input.ts
index d43126b..90ced65 100644
--- a/src/projects/dtos/create-project.input.ts
+++ b/src/projects/dtos/create-project.input.ts
@@ -3,6 +3,7 @@ import {
   IsOptional,
   IsString,
   IsUrl,
+  Matches,
   MaxLength,
   MinLength,
 } from 'class-validator';
@@ -19,7 +20,9 @@ export class CreateProjectInput {
   @MinLength(2)
   comment: string;
 
-  @IsUrl({ protocols: ['ssh'] })
+  @Matches(
+    /^(?:ssh:\/\/)?(?:[\w\d-_]+@)(?:[\w\d-_]+\.)*\w{2,10}(?::\d{1,5})?(?:\/[\w\d-_.]+)*/,
+  )
   @MaxLength(256)
   sshUrl: string;
 
diff --git a/src/repos/repos.service.ts b/src/repos/repos.service.ts
index 4696f72..7561884 100644
--- a/src/repos/repos.service.ts
+++ b/src/repos/repos.service.ts
@@ -31,7 +31,7 @@ export class ReposService {
     // TODO:  获取锁，失败抛错。
   }
 
-  async getGit(project: Project, subDir?: string) {
+  async getGit(project: Project, subDir = 'default') {
     const workspaceRoot = this.getWorkspaceRoot(project, subDir);
     await this.lockWorkspace(workspaceRoot);