diff --git a/README.md b/README.md
index e9bd366..5d9a841 100644
--- a/README.md
+++ b/README.md
@@ -73,7 +73,9 @@ Examples (run both with `python3 -m joint_teapot create-issues`):
 
 ### `create-personal-repos`
 
-create personal repos on gitea for all canvas students
+create personal repos on gitea for all canvas students. You may specify an optional suffix.
+
+Example: `python3 -m joint_teapot create-personal-repos --suffix "-p1"` will create repos named `StudentNameStudentID-p1`.
 
 ### `create-teams`
 
diff --git a/joint_teapot/app.py b/joint_teapot/app.py
index fa2955a..b3ec4c7 100644
--- a/joint_teapot/app.py
+++ b/joint_teapot/app.py
@@ -34,8 +34,10 @@ def add_all_canvas_students_to_teams(team_names: List[str]) -> None:
     "create-personal-repos",
     help="create personal repos on gitea for all canvas students",
 )
-def create_personal_repos_for_all_canvas_students() -> None:
-    tea.pot.create_personal_repos_for_all_canvas_students()
+def create_personal_repos_for_all_canvas_students(
+    suffix: str = Option("")
+) -> None:
+    tea.pot.create_personal_repos_for_all_canvas_students(suffix)
 
 
 @app.command("create-teams", help="create teams on gitea by canvas groups")
diff --git a/joint_teapot/teapot.py b/joint_teapot/teapot.py
index 1ca132a..8e2fec2 100644
--- a/joint_teapot/teapot.py
+++ b/joint_teapot/teapot.py
@@ -5,7 +5,7 @@ from typing import Any, Callable, Dict, List, Optional, TypeVar
 
 from joint_teapot.config import settings
 from joint_teapot.utils.logger import logger
-from joint_teapot.utils.main import first
+from joint_teapot.utils.main import first, default_repo_name_convertor
 from joint_teapot.workers import Canvas, Git, Gitea, Mattermost
 from joint_teapot.workers.joj import JOJ
 
@@ -86,9 +86,10 @@ class Teapot:
     def add_all_canvas_students_to_teams(self, team_names: List[str]) -> None:
         return self.gitea.add_canvas_students_to_teams(self.canvas.students, team_names)
 
-    def create_personal_repos_for_all_canvas_students(self) -> List[str]:
+    def create_personal_repos_for_all_canvas_students(self, suffix: str = "") -> List[str]:
         return self.gitea.create_personal_repos_for_canvas_students(
-            self.canvas.students
+            self.canvas.students,
+            lambda user: default_repo_name_convertor(user) + suffix
         )
 
     def create_teams_and_repos_by_canvas_groups(
diff --git a/joint_teapot/utils/main.py b/joint_teapot/utils/main.py
index 74c96a0..8772efd 100644
--- a/joint_teapot/utils/main.py
+++ b/joint_teapot/utils/main.py
@@ -30,8 +30,8 @@ def percentile(
 
 
 def default_repo_name_convertor(user: User) -> str:
-    sis_login_id, name = user.sis_login_id, user.name
+    login_id, name = user.login_id, user.name
     eng = re.sub("[\u4e00-\u9fa5]", "", name)
     eng = eng.replace(",", "")
-    eng = "".join([word[0].capitalize() + word[1:] for word in eng.split()])
-    return f"{eng}{sis_login_id}"
+    eng = eng.title().replace(" ", "")
+    return f"{eng}{login_id}"