diff --git a/evolution.spec b/evolution.spec
index c26949b..54dcbdc 100644
--- a/evolution.spec
+++ b/evolution.spec
@@ -241,6 +241,14 @@ fi
 CPPFLAGS="-I%{_includedir}/et"; export CPPFLAGS
 CFLAGS="$RPM_OPT_FLAGS -fPIC -DLDAP_DEPRECATED -I%{_includedir}/et -Wno-sign-compare"; export CFLAGS
 
+# Regenerate configure to pick up configure.ac changes
+aclocal -I m4
+autoheader
+automake
+libtoolize
+intltoolize --force
+autoconf
+
 %configure \
 	--disable-image-inline \
 	--enable-gtk-doc \