diff --git a/files/routes/login.py b/files/routes/login.py
index 230e371c4a..35276d3368 100644
--- a/files/routes/login.py
+++ b/files/routes/login.py
@@ -47,17 +47,29 @@ def check_for_alts(current_id):
 
 		otheralts = g.db.query(Alt).options(lazyload('*')).filter(or_(Alt.user1 == past_id, Alt.user2 == past_id, Alt.user1 == current_id, Alt.user2 == current_id)).all()
 		for a in otheralts:
-			new_alt = Alt(user1=a.user1, user2=past_id)
-			g.db.add(new_alt)
+			try:
+				new_alt = Alt(user1=a.user1, user2=past_id)
+				g.db.add(new_alt)
+				g.db.flush()
+			except: g.db.rollback()
 		for a in otheralts:
-			new_alt = Alt(user1=a.user1, user2=current_id)
-			g.db.add(new_alt)
+			try:
+				new_alt = Alt(user1=a.user1, user2=current_id)
+				g.db.add(new_alt)
+				g.db.flush()
+			except: g.db.rollback()
 		for a in otheralts:
-			new_alt = Alt(user1=a.user2, user2=past_id)
-			g.db.add(new_alt)
+			try:
+				new_alt = Alt(user1=a.user2, user2=past_id)
+				g.db.add(new_alt)
+				g.db.flush()
+			except: g.db.rollback()
 		for a in otheralts:
-			new_alt = Alt(user1=a.user2, user2=current_id)
-			g.db.add(new_alt)
+			try:
+				new_alt = Alt(user1=a.user2, user2=current_id)
+				g.db.add(new_alt)
+				g.db.flush()
+			except: g.db.rollback()
 
 # login post procedure