diff --git a/src/pg.ml b/src/pg.ml
index 0553bbe7..29e8f73f 100644
--- a/src/pg.ml
+++ b/src/pg.ml
@@ -73,15 +73,14 @@ let insert_signkey =
   in
   fun (module Conn : CONN) v -> Conn.exec insert_signkey v
 
+(* TODO revokation master_sig *)
 let find_denom =
   let find_denom =
     Caqti_type.(denomination_hash ->? denom_data)
       "SELECT denom_pub, (coin).*, valid_from, expire_withdraw, \
        expire_deposit, expire_legal, (fee_withdraw).*, (fee_deposit).*, \
-       (fee_refresh).*, (fee_refund).*, age_mask, denom_pub_hash, \
-       denominations.master_sig, denomination_revocations.master_sig FROM \
-       denominations WHERE denom_pub_hash=$1 LEFT JOIN \
-       denomination_revocations USING (denominations_serial)"
+       (fee_refresh).*, (fee_refund).*, age_mask, denom_pub_hash, master_sig, \
+       NULL FROM denominations WHERE denom_pub_hash=$1"
   in
   fun (module Conn : CONN) h_denom_pub -> Conn.find_opt find_denom h_denom_pub
 
@@ -90,10 +89,8 @@ let get_denominations =
     Caqti_type.(unit ->* denom_data)
       "SELECT denom_pub, (coin).*, valid_from, expire_withdraw, \
        expire_deposit, expire_legal, (fee_withdraw).*, (fee_deposit).*, \
-       (fee_refresh).*, (fee_refund).*, age_mask, denom_pub_hash, \
-       denominations.master_sig, denomination_revocations.master_sig FROM \
-       denominations LEFT JOIN denomination_revocations USING \
-       (denominations_serial)"
+       (fee_refresh).*, (fee_refund).*, age_mask, denom_pub_hash, master_sig, \
+       NULL FROM denominations"
   in
   fun (module Conn : CONN) -> Conn.collect_list get_denominations ()