X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fucioption.cpp;h=922fa34fe939808a51ed14658fa2d0861685bd3b;hb=ad926d34c0105d523bfa5cb92cbcf9f337d54c08;hp=07b3027da707e11f239724f31576306efd40f289;hpb=ed436a36bade82422753f8be9c16d790232e9c91;p=stockfish

diff --git a/src/ucioption.cpp b/src/ucioption.cpp
index 07b3027d..922fa34f 100644
--- a/src/ucioption.cpp
+++ b/src/ucioption.cpp
@@ -1,6 +1,6 @@
 /*
   Stockfish, a UCI chess playing engine derived from Glaurung 2.1
-  Copyright (C) 2004-2021 The Stockfish developers (see AUTHORS file)
+  Copyright (C) 2004-2022 The Stockfish developers (see AUTHORS file)
 
   Stockfish is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -164,7 +164,7 @@ Option& Option::operator=(const string& v) {
 
   assert(!type.empty());
 
-  if (   (type != "button" && v.empty())
+  if (   (type != "button" && type != "string" && v.empty())
       || (type == "check" && v != "true" && v != "false")
       || (type == "spin" && (stof(v) < min || stof(v) > max)))
       return *this;