diff --git a/lib/server.js b/lib/server.js
index e7e5013..5030e23 100644
--- a/lib/server.js
+++ b/lib/server.js
@@ -420,7 +420,7 @@ CopayServer.prototype.createTx = function(opts, cb) {
           message: opts.message,
           changeAddress: changeAddress.address,
           requiredSignatures: wallet.m,
-          requiredRejections: Math.min(wallet.m - 1, wallet.n - wallet.m) + 1,
+          requiredRejections: Math.min(wallet.m, wallet.n - wallet.m + 1),
         });
 
         txp.inputs = self._selectUtxos(txp, utxos);