diff --git a/rpm/lemonldap-ng.spec b/rpm/lemonldap-ng.spec
index bb2a970a2..f4a3a61f2 100644
--- a/rpm/lemonldap-ng.spec
+++ b/rpm/lemonldap-ng.spec
@@ -125,6 +125,7 @@ BuildRequires:  perl(IO::Select)
 BuildRequires:  perl(IO::Socket::INET)
 BuildRequires:  perl(IO::String)
 BuildRequires:  perl(JSON)
+BuildRequires:  perl(JSON::XS)
 %if 0%{?fedora}
 BuildRequires:  perl(Lasso)
 BuildRequires:  perl(Glib)