diff --git a/pkgs/applications/networking/instant-messengers/kadu/default.nix b/pkgs/applications/networking/instant-messengers/kadu/default.nix
index c35d71fbca0..26db00ad441 100644
--- a/pkgs/applications/networking/instant-messengers/kadu/default.nix
+++ b/pkgs/applications/networking/instant-messengers/kadu/default.nix
@@ -19,6 +19,10 @@ stdenv.mkDerivation {
   prePatch = ''
     patchShebangs .
   '';
+  
+  patches = [ 
+    ./includes.patch
+  ];
 
   meta = { 
     description = "An instance messanger client for the gadu-gadu network (most popular polish IM network)";
diff --git a/pkgs/applications/networking/instant-messengers/kadu/includes.patch b/pkgs/applications/networking/instant-messengers/kadu/includes.patch
new file mode 100644
index 00000000000..6960a24b176
--- /dev/null
+++ b/pkgs/applications/networking/instant-messengers/kadu/includes.patch
@@ -0,0 +1,13 @@
+--- kadu/kadu-core/main.cpp	2011-01-27 22:58:22.000000000 +0100
++++ kadu/kadu-core/main.cpp	2011-01-27 22:58:28.000000000 +0100
+@@ -20,10 +20,8 @@
+ #include <winsock2.h>
+ #include <windows.h>
+ #endif
+-#ifdef Q_OS_BSD4
+ #include <sys/types.h>
+ #include <sys/stat.h>
+-#endif
+ 
+ #include "config_file.h"
+ #include "debug.h"