diff --git a/multi-link b/multi-link
index bc4ba8e0..27d05e86 160000
--- a/multi-link
+++ b/multi-link
@@ -1 +1 @@
-Subproject commit bc4ba8e003b9ee6894fead78e54f164f681d02e1
+Subproject commit 27d05e86572cd73bbff40a2a6b6894a893a4271a
diff --git a/src/network/qextserialport/qextserialenumerator.h b/src/network/qextserialport/qextserialenumerator.h
index 1bdac8b3..40050852 100644
--- a/src/network/qextserialport/qextserialenumerator.h
+++ b/src/network/qextserialport/qextserialenumerator.h
@@ -35,7 +35,8 @@ struct QextPortInfo
  * Windows implementation is based on Zach Gorman's work from
  * <a href="http://www.codeproject.com">The Code Project</a> (http://www.codeproject.com/system/setupdi.asp).
  */
-class LIBRARYSHARED_EXPORT QextSerialEnumerator
+#include <qqt-local.h>
+class QQTSHARED_EXPORT QextSerialEnumerator
 {
 private:
 #ifdef _TTY_WIN_
diff --git a/src/network/qextserialport/qextserialport.h b/src/network/qextserialport/qextserialport.h
index 951b5fac..5b76780e 100644
--- a/src/network/qextserialport/qextserialport.h
+++ b/src/network/qextserialport/qextserialport.h
@@ -12,8 +12,8 @@
 #include "win_qextserialport.h"
 #define QextBaseType Win_QextSerialPort
 #endif
-
-class LIBRARYSHARED_EXPORT QextSerialPort: public QextBaseType
+#include <qqt-local.h>
+class QQTSHARED_EXPORT QextSerialPort: public QextBaseType
 {
     Q_OBJECT