diff --git a/libguestfs.spec b/libguestfs.spec
index e981506..cc56377 100644
--- a/libguestfs.spec
+++ b/libguestfs.spec
@@ -12,7 +12,7 @@ Summary:       Access and modify virtual machine disk images
 Name:          libguestfs
 Epoch:         1
 Version:       1.21.40
-Release:       2%{?dist}
+Release:       3%{?dist}
 License:       LGPLv2+
 
 # Source and patches.
@@ -611,6 +611,9 @@ export SKIP_TEST_SET_LABEL=1
 export SKIP_TEST_BTRFS_DEVICES_SH=1
 %endif
 
+# mdadm causes kernel panics (RHBZ#962079).
+export SKIP_TEST_MDADM_SH=1
+
 # Skip gnulib tests which fail (probably these are kernel/glibc bugs).
 pushd gnulib/tests
 make -k check ||:
@@ -889,10 +892,7 @@ mkdir -p $RPM_BUILD_ROOT%{_localstatedir}/run/libguestfs
 
 
 %changelog
-* Wed May 22 2013 Richard W.M. Jones <rjones@redhat.com> - 1:1.21.40-2
-- Try re-enabling mdadm tests as they seem to have fixed themselves.
-
-* Tue May 21 2013 Richard W.M. Jones <rjones@redhat.com> - 1:1.21.40-1
+* Tue May 21 2013 Richard W.M. Jones <rjones@redhat.com> - 1:1.21.40-3
 - New upstream version 1.21.40.
 
 * Wed May 15 2013 Richard W.M. Jones <rjones@redhat.com> - 1:1.21.39-1