diff --git a/evolution-2.27.90-fix-libevolution-cal-shared.patch b/evolution-2.27.90-fix-libevolution-cal-shared.patch
new file mode 100644
index 0000000..f0f1156
--- /dev/null
+++ b/evolution-2.27.90-fix-libevolution-cal-shared.patch
@@ -0,0 +1,24 @@
+diff -up evolution-2.27.90/calendar/gui/Makefile.am.fix-libevolution-cal-shared evolution-2.27.90/calendar/gui/Makefile.am
+--- evolution-2.27.90/calendar/gui/Makefile.am.fix-libevolution-cal-shared	2009-08-14 17:47:01.000000000 -0400
++++ evolution-2.27.90/calendar/gui/Makefile.am	2009-08-14 17:47:14.000000000 -0400
+@@ -279,7 +279,7 @@ libevolution_cal_shared_la_LIBADD =					
+ 	$(CAMEL_LIBS)							\
+ 	$(EVOLUTION_CALENDAR_LIBS)
+ 
+-libevolution_cal_shared_la_LDFLAGS = -avoid-version -module $(NO_UNDEFINED)
++libevolution_cal_shared_la_LDFLAGS = $(NO_UNDEFINED)
+ 
+ 
+ libevolution_calendar_la_LIBADD =					\
+diff -up evolution-2.27.90/calendar/gui/Makefile.in.fix-libevolution-cal-shared evolution-2.27.90/calendar/gui/Makefile.in
+--- evolution-2.27.90/calendar/gui/Makefile.in.fix-libevolution-cal-shared	2009-08-14 17:47:21.000000000 -0400
++++ evolution-2.27.90/calendar/gui/Makefile.in	2009-08-14 17:47:34.000000000 -0400
+@@ -730,7 +730,7 @@ libevolution_cal_shared_la_LIBADD = \
+ 	$(CAMEL_LIBS)							\
+ 	$(EVOLUTION_CALENDAR_LIBS)
+ 
+-libevolution_cal_shared_la_LDFLAGS = -avoid-version -module $(NO_UNDEFINED)
++libevolution_cal_shared_la_LDFLAGS = $(NO_UNDEFINED)
+ libevolution_calendar_la_LIBADD = \
+ 	$(top_builddir)/calendar/gui/libevolution-cal-shared.la		\
+ 	$(WIN32_BOOTSTRAP_LIBS)						\
diff --git a/evolution.spec b/evolution.spec
index 26279b5..4dc47fb 100644
--- a/evolution.spec
+++ b/evolution.spec
@@ -43,7 +43,7 @@
 
 Name: evolution
 Version: 2.27.90
-Release: 2%{?dist}
+Release: 3%{?dist}
 Group: Applications/Productivity
 Summary: Mail and calendar client for GNOME
 License: GPLv2+ and GFDL
@@ -66,6 +66,9 @@ Patch11: evolution-2.5.4-fix-conduit-dir.patch
 # RH bug #176400
 Patch12: evolution-2.9.1-im-context-reset.patch
 
+# GNOME bug #591414
+Patch13: evolution-2.27.90-fix-libevolution-cal-shared.patch
+
 ## Dependencies ###
 
 Requires(post): GConf2
@@ -240,6 +243,7 @@ This package contains the plugin to import Microsoft Personal Storage Table
 %patch10 -p1 -b .ldaphack
 %patch11 -p1 -b .fix-conduit-dir
 %patch12 -p1 -b .im-context-reset
+%patch13 -p1 -b .fix-libevolution-cal-shared
 
 mkdir -p krb5-fakeprefix/include
 mkdir -p krb5-fakeprefix/lib
@@ -479,6 +483,7 @@ rm -rf $RPM_BUILD_ROOT
 %{_libdir}/evolution/%{evo_major}/libevolution-a11y.so.*
 %{_libdir}/evolution/%{evo_major}/libevolution-addressbook-a11y.so.*
 %{_libdir}/evolution/%{evo_major}/libevolution-addressbook-importers.so.*
+%{_libdir}/evolution/%{evo_major}/libevolution-cal-shared.so.*
 %{_libdir}/evolution/%{evo_major}/libevolution-calendar-a11y.so.*
 %{_libdir}/evolution/%{evo_major}/libevolution-calendar-importers.so.*
 %{_libdir}/evolution/%{evo_major}/libevolution-mail-importers.so.*
@@ -695,6 +700,9 @@ rm -rf $RPM_BUILD_ROOT
 %endif
 
 %changelog
+* Fri Aug 14 2009 Matthew Barnes <mbarnes@redhat.com> - 2.27.90-3.fc12
+- Add patch for GNOME bug #591414 (calendar library linked as module).
+
 * Tue Aug 11 2009 Milan Crha <mcrha@redhat.com> - 2.27.90-2.fc12
 - Build requires gnome-desktop-devel >= 2.26
 - New library libevolution-cal-shared.so