diff --git a/perl-IO-Socket-SSL.spec b/perl-IO-Socket-SSL.spec
index 22bbf29..24cdfdb 100644
--- a/perl-IO-Socket-SSL.spec
+++ b/perl-IO-Socket-SSL.spec
@@ -1,3 +1,5 @@
+%bcond_without perl_IO_Socket_SSL_test_unused_idn
+
 Name:		perl-IO-Socket-SSL
 Version:	2.066
 Release:	8%{?dist}
@@ -45,8 +47,10 @@ BuildRequires:	perl(IO::Select)
 BuildRequires:	perl(IO::Socket::INET6) >= 2.62
 # IPC::Run for Test-client-performs-Post-Handshake-Authentication.patch
 BuildRequires:	perl(IPC::Run)
+%if %{with perl_IO_Socket_SSL_test_unused_idn}
 BuildRequires:	perl(Net::IDN::Encode)
 BuildRequires:	perl(Net::LibIDN)
+%endif
 BuildRequires:	perl(Test::More) >= 0.88
 BuildRequires:	perl(utf8)
 BuildRequires:	procps