diff --git a/cmake/re-config.cmake b/cmake/re-config.cmake
index 34ebe80a5..04023d923 100644
--- a/cmake/re-config.cmake
+++ b/cmake/re-config.cmake
@@ -1,6 +1,7 @@
 include(CheckIncludeFile)
 include(CheckFunctionExists)
 include(CheckSymbolExists)
+include(CheckTypeSize)
 
 option(USE_MBEDTLS "Enable MbedTLS" OFF)
 
@@ -135,6 +136,20 @@ if(WIN32)
     WIN32 
     _WIN32_WINNT=0x0600
   )
+
+  unset(CMAKE_EXTRA_INCLUDE_FILES)
+  set(CMAKE_EXTRA_INCLUDE_FILES "winsock2.h;qos2.h")
+  check_type_size("QOS_FLOWID" HAVE_QOS_FLOWID BUILTIN_TYPES_ONLY)
+  check_type_size("PQOS_FLOWID" HAVE_PQOS_FLOWID BUILTIN_TYPES_ONLY)
+  unset(CMAKE_EXTRA_INCLUDE_FILES)
+
+  if(HAVE_QOS_FLOWID)
+    list(APPEND RE_DEFINITIONS HAVE_QOS_FLOWID)
+  endif()
+
+  if(HAVE_PQOS_FLOWID)
+    list(APPEND RE_DEFINITIONS HAVE_PQOS_FLOWID)
+  endif()
 endif()
 
 if(USE_OPENSSL)
diff --git a/src/udp/udp.c b/src/udp/udp.c
index 496e7581d..18b58d8f3 100644
--- a/src/udp/udp.c
+++ b/src/udp/udp.c
@@ -28,13 +28,19 @@
 #include <re_sa.h>
 #include <re_udp.h>
 #ifdef WIN32
-#if !defined(_MSC_VER)
-typedef UINT32 QOS_FLOWID, *PQOS_FLOWID;
+#ifndef HAVE_QOS_FLOWID
+typedef UINT32 QOS_FLOWID;
+#endif
+
+#ifndef HAVE_PQOS_FLOWID
+typedef UINT32 *PQOS_FLOWID;
+#endif
+
+#include <qos2.h>
+
 #ifndef QOS_NON_ADAPTIVE_FLOW
 #define QOS_NON_ADAPTIVE_FLOW 0x00000002
 #endif
-#endif /*!_MSC_VER*/
-#include <qos2.h>
 #endif /*WIN32*/
 
 #define DEBUG_MODULE "udp"