diff --git a/app/main.py b/app/main.py
index 657ea4d..6c67924 100644
--- a/app/main.py
+++ b/app/main.py
@@ -415,6 +415,11 @@ async def cloudron_create_user(email: str, name: str) -> str:
         r.raise_for_status()
         for u in r.json().get("users", []):
             if u.get("email") == email:
+                # If the existing user has no display name (e.g. created with a
+                # placeholder), fill it in. Otherwise leave it alone — the user
+                # may have set their own name during account setup.
+                if not u.get("displayName"):
+                    await cloudron_update_profile(u["id"], email, name)
                 return u["id"]
 
         # Create user (role "user" = regular member). Only email is required;
@@ -458,6 +463,22 @@ async def cloudron_set_active(user_id: str, active: bool) -> None:
         r.raise_for_status()
 
 
+async def cloudron_update_profile(user_id: str, email: str, display_name: str, fallback_email: str = "") -> None:
+    """Update a user's profile (display name, email) after creation.
+
+    Uses POST /api/v1/users/:userId/profile (the Cloudron "Update user" route).
+    Needed because cloudron_create_user() only sets displayName at creation and
+    returns early if the user already exists — so corrections require this.
+    """
+    async with httpx.AsyncClient() as client:
+        r = await client.post(
+            f"{CLOUDRON_API}/api/v1/users/{user_id}/profile",
+            headers=cloudron_headers(),
+            json={"email": email, "displayName": display_name, "fallbackEmail": fallback_email},
+        )
+        r.raise_for_status()
+
+
 async def cloudron_get_invite_link(user_id: str) -> str:
     """Return the account-setup link WITHOUT sending Cloudron's own email.