diff --git a/SoObjects/SOGo/GNUmakefile b/SoObjects/SOGo/GNUmakefile
index 6003f8e2a..c5e169fec 100644
--- a/SoObjects/SOGo/GNUmakefile
+++ b/SoObjects/SOGo/GNUmakefile
@@ -206,7 +206,7 @@ endif
 ADDITIONAL_TOOL_LIBS += -Lobj -lSOGo$(LIBRARY_NAME_SUFFIX)
 ADDITIONAL_INCLUDE_DIRS += -I../../SOPE/
 ADDITIONAL_LIB_DIRS += -L../../SOPE/GDLContentStore/obj/
-ADDITIONAL_LDFLAGS += -lmemcached
+ADDITIONAL_LDFLAGS += -lmemcached -lzip
 
 -include GNUmakefile.preamble
 ifneq ($(FHS_INSTALL_ROOT),)
diff --git a/packaging/rhel/sogo.spec b/packaging/rhel/sogo.spec
index 21da6256a..b82adc574 100644
--- a/packaging/rhel/sogo.spec
+++ b/packaging/rhel/sogo.spec
@@ -21,9 +21,9 @@ Group:        Productivity/Groupware
 Source:       SOGo-%{sogo_version}.tar.gz
 Prefix:       /usr
 AutoReqProv:  off
-Requires:     gnustep-base >= 1.23, sope%{sope_major_version}%{sope_minor_version}-core, httpd, sope%{sope_major_version}%{sope_minor_version}-core, sope%{sope_major_version}%{sope_minor_version}-appserver, sope%{sope_major_version}%{sope_minor_version}-ldap, sope%{sope_major_version}%{sope_minor_version}-cards >= %{sogo_version}, sope%{sope_major_version}%{sope_minor_version}-gdl1-contentstore >= %{sogo_version}, sope%{sope_major_version}%{sope_minor_version}-sbjson, libmemcached, memcached, zip
+Requires:     gnustep-base >= 1.23, sope%{sope_major_version}%{sope_minor_version}-core, httpd, sope%{sope_major_version}%{sope_minor_version}-core, sope%{sope_major_version}%{sope_minor_version}-appserver, sope%{sope_major_version}%{sope_minor_version}-ldap, sope%{sope_major_version}%{sope_minor_version}-cards >= %{sogo_version}, sope%{sope_major_version}%{sope_minor_version}-gdl1-contentstore >= %{sogo_version}, sope%{sope_major_version}%{sope_minor_version}-sbjson, libmemcached, memcached, libzip
 BuildRoot:    %{_tmppath}/%{name}-%{version}-%{release}
-BuildRequires:  gcc-objc gnustep-base gnustep-make sope%{sope_major_version}%{sope_minor_version}-appserver-devel sope%{sope_major_version}%{sope_minor_version}-core-devel sope%{sope_major_version}%{sope_minor_version}-ldap-devel sope%{sope_major_version}%{sope_minor_version}-mime-devel sope%{sope_major_version}%{sope_minor_version}-xml-devel sope%{sope_major_version}%{sope_minor_version}-gdl1-devel sope%{sope_major_version}%{sope_minor_version}-sbjson-devel libmemcached-devel sed %{?oc_build_depends}
+BuildRequires:  gcc-objc gnustep-base gnustep-make sope%{sope_major_version}%{sope_minor_version}-appserver-devel sope%{sope_major_version}%{sope_minor_version}-core-devel sope%{sope_major_version}%{sope_minor_version}-ldap-devel sope%{sope_major_version}%{sope_minor_version}-mime-devel sope%{sope_major_version}%{sope_minor_version}-xml-devel sope%{sope_major_version}%{sope_minor_version}-gdl1-devel sope%{sope_major_version}%{sope_minor_version}-sbjson-devel libmemcached-devel sed libzip-devel %{?oc_build_depends}
 
 
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