diff --git a/src/pg.ml b/src/pg.ml
index 29e8f73f..2579af2a 100644
--- a/src/pg.ml
+++ b/src/pg.ml
@@ -39,15 +39,12 @@ let preflight =
   in
   fun (module Conn : CONN) -> Syntax.list_iter (fun p -> Conn.exec p ()) l
 
-(* TODO revoked_sig
-   check left join *)
+(* TODO revocation master_sig *)
 let find_signkey =
   let find_signkey =
     Caqti_type.(eddsa_pub ->? signkey_data)
-      "SELECT exchange_pub, valid_from, expire_sign, expire_legal, \
-       exchange_sign_keys.master_sig, signkey_revocations.master_sig FROM \
-       exchange_sign_keys WHERE exchange_pub=$1 LEFT JOIN signkey_revocations \
-       USING (esk_serial)"
+      "SELECT exchange_pub, valid_from, expire_sign, expire_legal, master_sig, \
+       NULL FROM exchange_sign_keys WHERE exchange_pub=$1"
   in
   fun (module Conn : CONN) (exchange_pub : EddsaPublicKey.t) ->
     Conn.find_opt find_signkey exchange_pub
@@ -73,7 +70,7 @@ let insert_signkey =
   in
   fun (module Conn : CONN) v -> Conn.exec insert_signkey v
 
-(* TODO revokation master_sig *)
+(* TODO revocation master_sig *)
 let find_denom =
   let find_denom =
     Caqti_type.(denomination_hash ->? denom_data)
diff --git a/src/secmod.ml b/src/secmod.ml
index 37078298..6c0090dc 100644
--- a/src/secmod.ml
+++ b/src/secmod.ml
@@ -78,7 +78,7 @@ module Make (Conn : Pg.CONN) = struct
     match opt with
     | None ->
         Fmt.error
-          "load_signkey error: no associated data found in database for \
+          "load_signkey error, no associated data found in database for \
            signkey `%s`."
           (Fpath.to_string fname)
     | Some sk_data -> Ok sk_data