diff --git a/virt-v2v.spec b/virt-v2v.spec
index 9c00a2c..ef97278 100644
--- a/virt-v2v.spec
+++ b/virt-v2v.spec
@@ -10,7 +10,7 @@
 Name:          virt-v2v
 Epoch:         1
 Version:       1.43.3
-Release:       3%{?dist}
+Release:       4%{?dist}
 Summary:       Convert a virtual machine to run on KVM
 
 License:       GPLv2+
@@ -71,7 +71,9 @@ BuildRequires: ocaml-findlib-devel
 BuildRequires: ocaml-libguestfs-devel
 BuildRequires: ocaml-fileutils-devel
 BuildRequires: ocaml-gettext-devel
+%if !0%{?rhel}
 BuildRequires: ocaml-ounit-devel
+%endif
 
 BuildRequires: nbdkit-python-plugin
 
@@ -263,6 +265,9 @@ rm $RPM_BUILD_ROOT%{_datadir}/bash-completion/completions/virt-v2v-copy-to-local
 
 
 %changelog
+* Thu Mar 18 2021 Richard W.M. Jones <rjones@redhat.com> - 1:1.43.3-4
+- Make ocaml-ounit dependency conditional on !RHEL.
+
 * Mon Mar  8 2021 Richard W.M. Jones <rjones@redhat.com> - 1:1.43.3-3
 - Bump and rebuild for ocaml-gettext update.