diff --git a/qemu-sanity-check.spec b/qemu-sanity-check.spec
index 0586d2d..db56ed8 100644
--- a/qemu-sanity-check.spec
+++ b/qemu-sanity-check.spec
@@ -2,7 +2,7 @@
 
 Name:            qemu-sanity-check
 Version:         1.1.3
-Release:         3%{?dist}
+Release:         4%{?dist}
 Summary:         Simple qemu and Linux kernel sanity checker
 License:         GPLv2+
 
@@ -81,6 +81,9 @@ as %{name} except that this package does not depend on qemu or kernel.
 %patch3 -p1
 %patch4 -p1
 
+# Rerun autotools because the patches touch configure.ac and Makefile.am.
+autoreconf -i
+
 
 %build
 # NB: canonical_arch is a variable in the final script, so it
@@ -114,8 +117,9 @@ make DESTDIR=$RPM_BUILD_ROOT install
 
 
 %changelog
-* Thu Aug 22 2013 Richard W.M. Jones <rjones@redhat.com> - 1.1.3-3
+* Thu Aug 22 2013 Richard W.M. Jones <rjones@redhat.com> - 1.1.3-4
 - +BR autoconf, automake.
+- Run autoreconf after patching.
 
 * Thu Aug 22 2013 Richard W.M. Jones <rjones@redhat.com> - 1.1.3-2
 - Fedora kernels don't respond properly to panic=1 parameter (appears