diff --git a/evolution-data-server.spec b/evolution-data-server.spec
index c725b38..e6c2926 100644
--- a/evolution-data-server.spec
+++ b/evolution-data-server.spec
@@ -70,7 +70,7 @@ BuildRequires: vala-tools
 
 %if %{ldap_support}
 %if %{static_ldap}
-BuildRequires: openldap-evolution-devel
+BuildRequires: openldap-evolution-devel%{?_isa}
 BuildRequires: openssl-devel
 %else
 BuildRequires: openldap-devel >= 2.0.11