diff --git a/kallithea/model/db.py b/kallithea/model/db.py
--- a/kallithea/model/db.py
+++ b/kallithea/model/db.py
@@ -2523,7 +2523,6 @@ class Gist(Base, BaseDbModel):
 class UserSshKeys(Base, BaseDbModel):
     __tablename__ = 'user_ssh_keys'
     __table_args__ = (
-        Index('usk_public_key_idx', 'public_key'),
         Index('usk_fingerprint_idx', 'fingerprint'),
         UniqueConstraint('fingerprint'),
         _table_args_default_dict