diff --git a/src/boost_regex.hpp b/src/boost_regex.hpp
index ed25454ac3..48d6e5e870 100644
--- a/src/boost_regex.hpp
+++ b/src/boost_regex.hpp
@@ -7,6 +7,9 @@
 
 // Workaround for boost >= 1.78
 #ifdef WIN32
+#ifndef NOMINMAX
+#define NOMINMAX
+#endif
 #include <Windows.h>
 #endif