diff --git a/mingw-w64-headers-1.0b.20100730-uow.patch b/mingw-w64-headers-1.0b.20100730-uow.patch
new file mode 100644
index 0000000..4f55440
--- /dev/null
+++ b/mingw-w64-headers-1.0b.20100730-uow.patch
@@ -0,0 +1,96 @@
+diff -urBwbE mingw-w64-headers-1.0b.20100730/ddk/include/ddk/wdm.h mingw-w64-headers-1.0b.20100730/ddk/include/ddk/wdm.h
+--- mingw-w64-headers-1.0b.20100730/ddk/include/ddk/wdm.h	2010-07-27 11:14:13.000000000 +0200
++++ mingw-w64-headers-1.0b.20100730/ddk/include/ddk/wdm.h	2010-08-14 15:36:21.000000000 +0200
+@@ -56,7 +56,11 @@
+ #endif /* _MAC */
+ 
+ #ifndef _KTMTYPES_
++#ifdef _MSC_VER
+ typedef GUID UOW, *PUOW;
++#else
++typedef GUID *PUOW;
++#endif
+ #endif
+ 
+ typedef GUID *PGUID;
+@@ -14867,10 +14871,10 @@
+ } ENLISTMENT_INFORMATION_CLASS;
+ 
+ typedef struct _TRANSACTION_LIST_ENTRY {
+-#if defined(__cplusplus)
+-  ::UOW UOW;
+-#else
++#ifdef _MSC_VER
+   UOW UOW;
++#else
++  GUID UOW;
+ #endif
+ } TRANSACTION_LIST_ENTRY, *PTRANSACTION_LIST_ENTRY;
+ 
+diff -urBwbE mingw-w64-headers-1.0b.20100730/include/ktmtypes.h mingw-w64-headers-1.0b.20100730/include/ktmtypes.h
+--- mingw-w64-headers-1.0b.20100730/include/ktmtypes.h	2010-07-08 11:25:17.000000000 +0200
++++ mingw-w64-headers-1.0b.20100730/include/ktmtypes.h	2010-08-14 15:43:00.000000000 +0200
+@@ -92,7 +92,11 @@
+ #define MAX_RESOURCEMANAGER_DESCRIPTION_LENGTH  64
+ 
+ #ifndef _WDMDDK_
++#ifdef _MSC_VER
+ typedef GUID UOW, *PUOW;
++#else
++typedef GUID *PUOW;
++#endif
+ #endif
+ 
+ typedef GUID CRM_PROTOCOL_ID, *PCRM_PROTOCOL_ID;
+@@ -108,10 +112,10 @@
+ 
+ typedef struct _TRANSACTION_NOTIFICATION_RECOVERY_ARGUMENT {
+   GUID EnlistmentId;
+-#if defined(__cplusplus)
+-  ::UOW UOW;
+-#else
++#ifdef _MSC_VER
+   UOW UOW;
++#else
++  GUID UOW;
+ #endif
+ } TRANSACTION_NOTIFICATION_RECOVERY_ARGUMENT, *PTRANSACTION_NOTIFICATION_RECOVERY_ARGUMENT;
+ 
+@@ -126,7 +130,11 @@
+ 
+ typedef struct _TRANSACTION_NOTIFICATION_PROPAGATE_ARGUMENT {
+   ULONG PropagationCookie;
++#ifdef _MSC_VER
++  UOW UOW;
++#else
+   GUID UOW;
++#endif
+   GUID TmIdentity;
+   ULONG BufferLength;
+ } TRANSACTION_NOTIFICATION_PROPAGATE_ARGUMENT, *PTRANSACTION_NOTIFICATION_PROPAGATE_ARGUMENT,
+@@ -134,7 +142,11 @@
+ 
+ typedef struct _TRANSACTION_NOTIFICATION_MARSHAL_ARGUMENT {
+   ULONG MarshalCookie;
++#ifdef _MSC_VER
++  UOW UOW;
++#else
+   GUID UOW;
++#endif
+ } TRANSACTION_NOTIFICATION_MARSHAL_ARGUMENT, *PTRANSACTION_NOTIFICATION_MARSHAL_ARGUMENT;
+ 
+ typedef struct _KCRM_MARSHAL_HEADER {
+@@ -145,10 +157,10 @@
+ } KCRM_MARSHAL_HEADER, *PKCRM_MARSHAL_HEADER, *RESTRICTED_POINTER PRKCRM_MARSHAL_HEADER;
+ 
+ typedef struct _KCRM_TRANSACTION_BLOB {
+-#if defined(__cplusplus)
+-  ::UOW UOW;
+-#else
++#ifdef _MSC_VER
+   UOW UOW;
++#else
++  GUID UOW;
+ #endif
+   GUID TmIdentity;
+   ULONG IsolationLevel;
diff --git a/mingw32-headers.spec b/mingw32-headers.spec
index cc693ed..6bddbb6 100644
--- a/mingw32-headers.spec
+++ b/mingw32-headers.spec
@@ -13,6 +13,7 @@ Source0:        mingw-w64-headers-%{version}.tar.bz2
 Source1000:     %{name}-rpmlintrc
 Patch0:         mingw-w64-headers-1.0b.20100730-winsock.patch
 Patch1:         mingw-w64-headers-sigset_t.patch
+Patch2:         mingw-w64-headers-1.0b.20100730-uow.patch
 
 BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 
@@ -29,6 +30,7 @@ MinGW Win64 headers.
 %setup -q -n mingw-w64-headers-%{version}
 %patch0 -p1
 %patch1 -p0
+%patch2 -p1
 
 %build
 ./configure --host=%{_mingw32_target} \