diff --git a/llcon.pro b/llcon.pro
index d3970026..fdf96b66 100755
--- a/llcon.pro
+++ b/llcon.pro
@@ -14,6 +14,7 @@ DEFINES += USE_ALLOCA \
 
 win32 {
     DEFINES -= UNICODE
+    DEFINES += NOMINMAX # solves a compiler error in qdatetime.h (Qt5)
     HEADERS += windows/sound.h
     SOURCES += windows/sound.cpp \
         windows/ASIOSDK2/common/asio.cpp \
diff --git a/src/util.h b/src/util.h
index 305caea0..59d7ef3f 100755
--- a/src/util.h
+++ b/src/util.h
@@ -40,7 +40,6 @@
 #include "global.h"
 using namespace std; // because of the library: "vector"
 #ifdef _WIN32
-# define NOMINMAX // solves a compiler error in qdatetime.h (Qt5)
 # include <windows.h>
 # include <mmsystem.h>
 #endif
diff --git a/windows/sound.h b/windows/sound.h
index 716e632e..28c1863f 100755
--- a/windows/sound.h
+++ b/windows/sound.h
@@ -25,7 +25,6 @@
 #if !defined ( _SOUNDIN_H__9518A621_7F78_11D3_8C0D_EEBF182CF549__INCLUDED_ )
 #define _SOUNDIN_H__9518A621_7F78_11D3_8C0D_EEBF182CF549__INCLUDED_
 
-#define NOMINMAX // solves a compiler error in qdatetime.h (Qt5)
 #include <windows.h>
 #include <QMutex>
 #include <QMessageBox>