diff --git a/packaging/rhel/sogo.spec b/packaging/rhel/sogo.spec
index 32c5b314a..42114f575 100644
--- a/packaging/rhel/sogo.spec
+++ b/packaging/rhel/sogo.spec
@@ -43,8 +43,8 @@ BuildRequires:  gcc-objc gnustep-base gnustep-make sope%{sope_major_version}%{so
 %define saml2_cfg_opts "--enable-saml2"
 %{?el5:%define saml2_cfg_opts ""}
 %{?el7:%define saml2_cfg_opts ""}
-%{?!el5:Requires: lasso}
-%{?!el5:BuildRequires: lasso-devel}
+%{?el6:Requires: lasso}
+%{?el6:BuildRequires: lasso-devel}
 
 %description
 SOGo is a groupware server built around OpenGroupware.org (OGo) and