diff --git a/hmaccalc.spec b/hmaccalc.spec
index f00c325..bfcbf41 100644
--- a/hmaccalc.spec
+++ b/hmaccalc.spec
@@ -39,11 +39,10 @@ Source1:        https://fedorahosted.org/released/hmaccalc/hmaccalc-%{version}.t
 Source2:        %name.keyring
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 
-%ifarch %{ix86} x86_64 ppc ppc64 s390 s390x
 BuildRequires:  mozilla-nss-devel
+BuildRequires:  pkg-config
+%ifarch %{ix86} x86_64 ppc ppc64 s390 s390x
 BuildRequires:  prelink
-%else
-BuildRequires:  nss-devel
 %endif
 
 %description