diff --git a/src/plugins/imageformats/jp2/qjp2handler.cpp b/src/plugins/imageformats/jp2/qjp2handler.cpp
index 3c1958efe2968dd183c1adacebf516856a7ba15f..f69538cce1fa3d0eea0f5ed492a148422f17bd61 100644
--- a/src/plugins/imageformats/jp2/qjp2handler.cpp
+++ b/src/plugins/imageformats/jp2/qjp2handler.cpp
@@ -38,9 +38,6 @@
 #include "qvariant.h"
 #include "qcolor.h"
 
-#ifdef Q_CC_MSVC
-#define JAS_WIN_MSVC_BUILD
-#endif
 #include <jasper/jasper.h>
 
 QT_BEGIN_NAMESPACE