diff --git a/libvirt.spec.in b/libvirt.spec.in
index c0ea8988cd..b87e3f6cb8 100644
--- a/libvirt.spec.in
+++ b/libvirt.spec.in
@@ -97,7 +97,8 @@
 %endif
 
 # RHEL doesn't ship OpenVZ, VBox, UML, PowerHypervisor,
-# VMWare, libxenserver (xenapi), or libxenlight (Xen 4.1 and newer)
+# VMWare, libxenserver (xenapi), libxenlight (Xen 4.1 and newer),
+# or HyperV.
 %if 0%{?rhel}
 %define with_openvz 0
 %define with_vbox 0
@@ -106,6 +107,7 @@
 %define with_vmware 0
 %define with_xenapi 0
 %define with_libxl 0
+%define with_hyperv 0
 %endif
 
 # RHEL-5 has restricted QEMU to x86_64 only and is too old for LXC
@@ -894,9 +896,9 @@ done
 %endif
 
 %if %{with_cgconfig}
-# Starting with Fedora 15, systemd automounts all cgroups, and cgconfig is
+# Starting with Fedora 16, systemd automounts all cgroups, and cgconfig is
 # no longer a necessary service.
-%if 0%{?fedora} <= 14 || 0%{?rhel} <= 6
+%if 0%{?fedora} <= 15 || 0%{?rhel} <= 6
 if [ "$1" -eq "1" ]; then
 /sbin/chkconfig cgconfig on
 fi