diff --git a/synapse/storage/schema/full_schemas/11/transactions.sql b/synapse/storage/schema/full_schemas/11/transactions.sql
index c3d46763a6..093bb275b4 100644
--- a/synapse/storage/schema/full_schemas/11/transactions.sql
+++ b/synapse/storage/schema/full_schemas/11/transactions.sql
@@ -29,7 +29,7 @@ CREATE INDEX IF NOT EXISTS transactions_have_ref ON received_transactions(origin
 -- Stores what transactions we've sent, what their response was (if we got one) and whether we have
 -- since referenced the transaction in another outgoing transaction
 CREATE TABLE IF NOT EXISTS sent_transactions(
-    id BIGINT PRIMARY KEY, -- This is used to apply insertion ordering
+    id BIGINT PRIMARY KEY AUTOINCREMENT, -- This is used to apply insertion ordering
     transaction_id VARCHAR(150),
     destination VARCHAR(150),
     response_code INTEGER DEFAULT 0,
@@ -52,7 +52,7 @@ CREATE TABLE IF NOT EXISTS transaction_id_to_pdu(
     pdu_origin VARCHAR(150)
 );
 
-CREATE INDEX IF NOT EXISTS transaction_id_to_pdu_tx ON transaction_id_to_pdu(transaction_id, destination)
+CREATE INDEX IF NOT EXISTS transaction_id_to_pdu_tx ON transaction_id_to_pdu(transaction_id, destination);
 CREATE INDEX IF NOT EXISTS transaction_id_to_pdu_dest ON transaction_id_to_pdu(destination);
 
 -- To track destination health
diff --git a/synapse/storage/schema/full_schemas/11/users.sql b/synapse/storage/schema/full_schemas/11/users.sql
index 94c91e5298..e9a9fc94f7 100644
--- a/synapse/storage/schema/full_schemas/11/users.sql
+++ b/synapse/storage/schema/full_schemas/11/users.sql
@@ -22,7 +22,7 @@ CREATE TABLE IF NOT EXISTS users(
 );
 
 CREATE TABLE IF NOT EXISTS access_tokens(
-    id BIGINT PRIMARY KEY,
+    id BIGINT PRIMARY KEY AUTOINCREMENT,
     user_id VARCHAR(150) NOT NULL,
     device_id VARCHAR(150),
     token VARCHAR(150) NOT NULL,