diff --git a/src/platform/windows/misc.cpp b/src/platform/windows/misc.cpp
index a377fff9..a1731992 100644
--- a/src/platform/windows/misc.cpp
+++ b/src/platform/windows/misc.cpp
@@ -41,13 +41,6 @@
     ProcThreadAttributeValue(13, FALSE, TRUE, FALSE)
 #endif
 
-#ifndef HAS_QOS_FLOWID
-typedef UINT32 QOS_FLOWID;
-#endif
-
-#ifndef HAS_PQOS_FLOWID
-typedef UINT32 *PQOS_FLOWID;
-#endif
 
 #include <qos2.h>