diff --git a/mingw-w64-headers-1.0b.20110505-unsignedsocket.patch b/mingw-w64-headers-1.0b.20110505-unsignedsocket.patch
new file mode 100644
index 0000000..8dc5410
--- /dev/null
+++ b/mingw-w64-headers-1.0b.20110505-unsignedsocket.patch
@@ -0,0 +1,12 @@
+diff -urEbwB mingw-w64-headers-1.0b.20110505/include/psdk_inc/_socket_types.h mingw-w64-headers-1.0b.20110505/include/psdk_inc/_socket_types.h
+--- mingw-w64-headers-1.0b.20110505/include/psdk_inc/_socket_types.h	2011-05-19 16:05:41.592641295 +0200
++++ mingw-w64-headers-1.0b.20110505/include/psdk_inc/_socket_types.h	2011-05-19 16:06:28.030204004 +0200
+@@ -7,7 +7,7 @@
+ #ifndef ___WSA_SOCKET_TYPES_H
+ #define ___WSA_SOCKET_TYPES_H
+ 
+-#if 0
++#if 1
+ typedef UINT_PTR	SOCKET;
+ #else
+ typedef INT_PTR		SOCKET;
diff --git a/mingw64-headers.spec b/mingw64-headers.spec
index 3204dcd..27034d1 100644
--- a/mingw64-headers.spec
+++ b/mingw64-headers.spec
@@ -11,6 +11,7 @@ URL:            http://www.mingw.org/
 
 Source0:        mingw-w64-headers-%{version}.tar.bz2
 Source1000:     %{name}-rpmlintrc
+Patch0:         mingw-w64-headers-1.0b.20110505-unsignedsocket.patch
 
 BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 
@@ -25,6 +26,7 @@ MinGW Win64 headers.
 
 %prep
 %setup -q -n mingw-w64-headers-%{version}
+%patch0 -p1
 
 %build
 ./configure --host=%{_mingw64_target} \