diff --git a/src/blackcore/voice_vatlib.h b/src/blackcore/voice_vatlib.h
index dab8e02d8..ec10a70a3 100644
--- a/src/blackcore/voice_vatlib.h
+++ b/src/blackcore/voice_vatlib.h
@@ -14,7 +14,10 @@
 #include <QSet>
 #include <QString>
 
-#if defined(Q_OS_WIN)
+#ifdef Q_OS_WIN
+#ifndef NOMINMAX
+#define NOMINMAX
+#endif
 #include <Windows.h>
 #endif
 
diff --git a/src/blackmisc/context.cpp b/src/blackmisc/context.cpp
index ccc947d33..240fe6bf6 100644
--- a/src/blackmisc/context.cpp
+++ b/src/blackmisc/context.cpp
@@ -8,8 +8,10 @@
 #include <QCoreApplication>
 #include <stdexcept>
 
-
 #ifdef Q_OS_WIN
+#ifndef NOMINMAX
+#define NOMINMAX
+#endif
 #include <Windows.h>
 #endif