diff --git a/libguestfs.spec b/libguestfs.spec
index d73ab72..386af14 100644
--- a/libguestfs.spec
+++ b/libguestfs.spec
@@ -265,6 +265,9 @@ BuildRequires:  cryptsetup
 BuildRequires:  diffutils
 BuildRequires:  dosfstools
 BuildRequires:  e2fsprogs
+%if "%_project" == "Devel:Virt:SLE-11-SP3"
+BuildRequires:  ext4-writeable-kmp-default
+%endif
 BuildRequires:  file
 BuildRequires:  findutils
 BuildRequires:  gawk