diff --git a/files/classes/user.py b/files/classes/user.py
index 398aa51c0..974c16bd0 100644
--- a/files/classes/user.py
+++ b/files/classes/user.py
@@ -690,6 +690,21 @@ class User(Base):
 	def is_suspended(self):
 		return (self.is_banned and (self.unban_utc == 0 or self.unban_utc > time.time()))
 
+	@property
+	@lazy
+	def has_shadowbanned_alts(self):
+		qty = g.db.execute(
+				"""SELECT COUNT(*) FROM (
+					SELECT (CASE
+						WHEN user1 = :u THEN user2
+						WHEN user2 = :u THEN user1
+					END) AS id FROM alts
+					WHERE user1 = :u OR user2 = :u
+				) AS a
+				JOIN users ON a.id = users.id
+				WHERE users.shadowbanned IS NOT NULL""",
+			{"u": self.id}).scalar()
+		return qty > 0
 
 	@property
 	@lazy
diff --git a/files/routes/admin.py b/files/routes/admin.py
index 1d8fe36ca..a3389fd13 100644
--- a/files/routes/admin.py
+++ b/files/routes/admin.py
@@ -930,7 +930,7 @@ def shadowban(user_id, v):
 	g.db.add(user)
 
 	for alt in user.alts:
-		if alt.admin_level: break
+		if alt.admin_level: continue
 		alt.shadowbanned = v.username
 		g.db.add(alt)
 
diff --git a/files/routes/login.py b/files/routes/login.py
index 66b891d83..0d4e65df6 100644
--- a/files/routes/login.py
+++ b/files/routes/login.py
@@ -345,6 +345,10 @@ def sign_up_post(v):
 
 
 	check_for_alts(new_user.id)
+	if new_user.has_shadowbanned_alts:
+		new_user.shadowbanned = "AutoJanny"
+		g.db.add(new_user)
+		g.db.commit()
 	
 	send_notification(new_user.id, WELCOME_MSG)