diff --git a/evolution.spec b/evolution.spec
index b1239d2..445f560 100644
--- a/evolution.spec
+++ b/evolution.spec
@@ -26,10 +26,11 @@ ExcludeArch: ppc64
 %endif
 # note that nntp is non-functional in evo 1.3.x
 %define nntp_support 1
+%define exchange_support 1
 
 Name: evolution
 Version: 2.3.8
-Release: 3
+Release: 4
 License: GPL
 BuildRoot: %{_tmppath}/%{name}-%{version}-root
 URL: http://www.ximian.com/
@@ -254,6 +255,12 @@ if ! pkg-config --exists mozilla-nss; then
 fi
 %endif
 
+%if %{exchange_support}
+%define exchange_flags --enable-exchange=yes
+%else
+%define exchange_flags --enable-exchange=no
+%endif
+
 CPPFLAGS="-I%{_includedir}/et"; export CPPFLAGS
 CFLAGS="$RPM_OPT_FLAGS -fPIC -I%{_includedir}/et"; export CFLAGS
 %if ! %{use_mozilla_nss}
@@ -273,7 +280,7 @@ autoreconf -i
   --with-sub-version=" (%{version}-%{release})" \
   --with-kde-applnk-path=no \
   --enable-file-chooser=yes \
-  %ldap_flags %pilot_flags %krb5_flags %nntp_flags %ssl_flags \
+  %ldap_flags %pilot_flags %krb5_flags %nntp_flags %ssl_flags %exchange_flags \
   --enable-plugins=all
 export tagname=CC
 make LIBTOOL=%{_bindir}/libtool CFLAGS="$CFLAGS -Werror-implicit-function-declaration"
@@ -365,6 +372,10 @@ rm -rf $RPM_BUILD_ROOT
 %{_libdir}/evolution/%{evo_major}/*.so
 
 %changelog
+* Thu Sep  1 2005 David Malcolm <dmalcolm@redhat.com> - 2.3.8-4
+- Enable exchange support when configuring, so that the exchange-operations
+  plugin gets built.
+
 * Fri Aug 26 2005 David Malcolm <dmalcolm@redhat.com> - 2.3.8-3
 - Added patch for #157074 (patch 804)