diff --git a/libguestfs.spec b/libguestfs.spec
index b788305..016ca13 100644
--- a/libguestfs.spec
+++ b/libguestfs.spec
@@ -42,7 +42,7 @@ Summary:       Access and modify virtual machine disk images
 Name:          libguestfs
 Epoch:         1
 Version:       1.2.3
-Release:       1%{?dist}.5
+Release:       1%{?dist}.6
 License:       LGPLv2+
 Group:         Development/Libraries
 URL:           http://libguestfs.org/
@@ -486,11 +486,8 @@ export SKIP_TEST_MKE2JOURNAL_L=1
 export SKIP_TEST_SWAPON_LABEL=1
 
 %if %{runtests}
+# F-12 qemu-kvm segfaults for unknown reasons ...
 #make check
-# Only run quickcheck because the qemu-kvm in F-12 is
-# very prone to segfaulting randomly during the longer
-# tests.
-make quickcheck
 %endif
 
 
@@ -698,9 +695,9 @@ rm -rf $RPM_BUILD_ROOT
 
 
 %changelog
-* Wed Apr 21 2010 Richard W.M. Jones <rjones@redhat.com> - 1:1.2.3-1.fc12.5
+* Wed Apr 21 2010 Richard W.M. Jones <rjones@redhat.com> - 1:1.2.3-1.fc12.6
 - Patch appliance so it doesn't call hwclock (causes qemu to segfault).
-- Only run quickcheck, not full check.
+- Disable checks because qemu-kvm in F-12 keeps segfaulting.
 
 * Tue Apr 20 2010 Richard W.M. Jones <rjones@redhat.com> - 1:1.2.3-1.fc12.2
 - Try rebuild.