diff --git a/jadepy/jade.py b/jadepy/jade.py
index 4b5af40f..bf0ba70a 100644
--- a/jadepy/jade.py
+++ b/jadepy/jade.py
@@ -1220,28 +1220,18 @@ def sign_identity(self, identity, curve, challenge, index=0):
         params = {'identity': identity, 'curve': curve, 'index': index, 'challenge': challenge}
         return self._jadeRpc('sign_identity', params)
 
-    def get_master_blinding_key(self, only_if_silent=False):
+    def get_master_blinding_key(self):
         """
         RPC call to fetch the master (SLIP-077) blinding key for the hw signer.
-        May block temporarily to request the user's permission to export.  Passing 'only_if_silent'
-        causes the call to return the 'denied' error if it would normally ask the user.
         NOTE: the master blinding key of any registered multisig wallets can be obtained from
         the result of `get_registered_multisigs()`.
 
-        Parameters
-        ----------
-        only_if_silent : boolean, optional
-            If True Jade will return the denied error if it would normally ask the user's permission
-            to export the master blinding key.  Passing False (or letting default) may block while
-            asking the user to confirm the export on Jade.
-
         Returns
         -------
         32-bytes
             SLIP-077 master blinding key
         """
-        params = {'only_if_silent': only_if_silent}
-        return self._jadeRpc('get_master_blinding_key', params)
+        return self._jadeRpc('get_master_blinding_key')
 
     def get_blinding_key(self, script, multisig_name=None):
         """
diff --git a/main/process/get_master_blinding_key.c b/main/process/get_master_blinding_key.c
index ae279340..da0fbe08 100644
--- a/main/process/get_master_blinding_key.c
+++ b/main/process/get_master_blinding_key.c
@@ -14,14 +14,18 @@ void get_master_blinding_key_process(void* process_ptr)
     // We expect a current message to be present
     ASSERT_CURRENT_MESSAGE(process, "get_master_blinding_key");
     ASSERT_KEYCHAIN_UNLOCKED_BY_MESSAGE_SOURCE(process);
-    GET_MSG_PARAMS(process);
 
     // Ask the user if necessary
     if (keychain_get_confirm_export_blinding_key()) {
         // Optional field to suppress asking user for permission and instead
         // error in the cases where we would normally need to ask the user.
         bool onlyIfSilent = false;
-        rpc_get_boolean("only_if_silent", &params, &onlyIfSilent);
+
+        CborValue params;
+        const CborError cberr = cbor_value_map_find_value(&process->ctx.value, CBOR_RPC_TAG_PARAMS, &params);
+        if (cberr == CborNoError || cbor_value_is_valid(&params) || cbor_value_is_map(&params)) {
+            rpc_get_boolean("only_if_silent", &params, &onlyIfSilent);
+        }
 
         const char* question[] = { "Export master", "blinding key?" };
         if (onlyIfSilent || !await_yesno_activity("Blinding Key", question, 2, true, "blkstrm.com/blindingkey")) {