diff --git a/nbdkit.spec b/nbdkit.spec
index 763e45a..92ec631 100644
--- a/nbdkit.spec
+++ b/nbdkit.spec
@@ -72,7 +72,7 @@ BuildRequires:  autoconf, automake, libtool
 BuildRequires:  autoconf, automake, libtool
 %endif
 BuildRequires:  gcc, gcc-c++
-BuildRequires:  /usr/bin/pod2man
+BuildRequires:  %{_bindir}/pod2man
 BuildRequires:  gnutls-devel
 BuildRequires:  libselinux-devel
 %if !0%{?rhel} && 0%{?have_libguestfs}
@@ -113,7 +113,9 @@ BuildRequires:  gnupg2
 %endif
 
 # Only for running the test suite:
+BuildRequires:  %{_bindir}/bc
 BuildRequires:  %{_bindir}/certtool
+BuildRequires:  %{_bindir}/cut
 BuildRequires:  expect
 BuildRequires:  %{_bindir}/hexdump
 BuildRequires:  %{_sbindir}/ip