diff --git a/cdogs-sdl-0.4-open.patch b/cdogs-sdl-0.4-open.patch
new file mode 100644
index 0000000..a6758a1
--- /dev/null
+++ b/cdogs-sdl-0.4-open.patch
@@ -0,0 +1,12 @@
+diff -up cdogs-sdl-0.4/src/files.c~ cdogs-sdl-0.4/src/files.c
+--- cdogs-sdl-0.4/src/files.c~	2007-08-12 10:26:02.000000000 +0200
++++ cdogs-sdl-0.4/src/files.c	2007-08-12 10:26:02.000000000 +0200
+@@ -340,7 +340,7 @@ int SaveCampaign(const char *filename, T
+ 	int f;
+ 	int i;
+ 
+-	f = open(filename, O_WRONLY | O_CREAT | O_TRUNC);
++	f = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0644);
+ 	if (f >= 0) {
+ 		i = CAMPAIGN_MAGIC;
+ 		write(f, &i, sizeof(i));
diff --git a/cdogs-sdl.spec b/cdogs-sdl.spec
index 2abcfda..0719688 100644
--- a/cdogs-sdl.spec
+++ b/cdogs-sdl.spec
@@ -9,6 +9,7 @@ Source0:        http://icculus.org/%{name}/files/src/%{name}-%{version}.tar.bz2
 Source1:        %{name}.desktop
 Patch0:         cdogs-sdl-0.4-64bit.patch
 Patch1:         cdogs-sdl-0.4-default-cfg.patch
+Patch2:         cdogs-sdl-0.4-open.patch
 BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 BuildRequires:  SDL_mixer-devel desktop-file-utils
 Requires:       cdogs-data = 0.4
@@ -27,6 +28,7 @@ like to thank Ronny for releasing the C-Dogs sources to the public.
 %setup -q
 %patch0 -p1 -z .64bit
 %patch1 -p1 -z .cfg
+%patch2 -p1 -z .open
 sed -i 's/\r//' doc/original_readme.txt
 # stop this from getting installed as %doc
 rm doc/INSTALL
@@ -63,8 +65,9 @@ rm -rf $RPM_BUILD_ROOT
 
 
 %changelog
-* Sun Aug  5 2007 Hans de Goede <j.w.r.degoede@hhs.nl> 0.4-2
+* Sun Aug 12 2007 Hans de Goede <j.w.r.degoede@hhs.nl> 0.4-2
 - Update License tag for new Licensing Guidelines compliance
+- Fix building with new glibc open() argument checking
 
 * Mon Jul 16 2007 Hans de Goede <j.w.r.degoede@hhs.nl> 0.4-1
 - Initial Fedora Extras package