diff --git a/crypto_dev_signer/keystore/postgres.py b/crypto_dev_signer/keystore/postgres.py
index 2f42c9a..10fc777 100644
--- a/crypto_dev_signer/keystore/postgres.py
+++ b/crypto_dev_signer/keystore/postgres.py
@@ -43,7 +43,7 @@ class ReferenceKeystore(Keystore):
             self.db_session = sessionmaker(bind=self.db_engine)()
             for s in self.schema:
                 self.db_session.execute(s)
-            self.db_session.commit()
+                self.db_session.commit()
             self.symmetric_key = kwargs.get('symmetric_key')
 
 
@@ -62,7 +62,9 @@ class ReferenceKeystore(Keystore):
             try:
                 k = r.first()[0]
             except TypeError:
+                self.db_session.rollback()
                 raise UnknownAccountError(address)
+            self.db_session.commit()
             return self._decrypt(k, password)
 
 
diff --git a/crypto_dev_signer/runnable/signer.py b/crypto_dev_signer/runnable/signer.py
index 036468a..fa241d1 100755
--- a/crypto_dev_signer/runnable/signer.py
+++ b/crypto_dev_signer/runnable/signer.py
@@ -24,6 +24,7 @@ config_dir = '.'
 
 db = None
 signer = None
+session = None
 chainId = 8995
 socket_path = '/run/crypto-dev-signer/jsonrpc.ipc'
 
diff --git a/setup.py b/setup.py
index 7ca73f3..f5d1403 100644
--- a/setup.py
+++ b/setup.py
@@ -24,7 +24,7 @@ f.close()
 
 setup(
         name="crypto-dev-signer",
-        version="0.4.13rc2",
+        version="0.4.13rc3",
         description="A signer and keystore daemon and library for cryptocurrency software development",
         author="Louis Holbrook",
         author_email="dev@holbrook.no",