diff --git a/ocaml-findlib.spec b/ocaml-findlib.spec
index c5c9bdb..63e7935 100644
--- a/ocaml-findlib.spec
+++ b/ocaml-findlib.spec
@@ -1,6 +1,6 @@
 Name:           ocaml-findlib
 Version:        1.7.3
-Release:        7%{?dist}
+Release:        8%{?dist}
 Summary:        Objective CAML package manager and build helper
 License:        BSD
 
@@ -17,6 +17,7 @@ BuildRequires:  ocaml >= 4.02.0
 BuildRequires:  ocaml-camlp4-devel
 BuildRequires:  ocaml-labltk-devel
 BuildRequires:  ocaml-ocamlbuild-devel
+BuildRequires:  ocaml-num-devel
 BuildRequires:  ocaml-compiler-libs
 BuildRequires:  ocaml-ocamldoc
 BuildRequires:  m4, ncurses-devel
@@ -105,6 +106,9 @@ make install \
 
 
 %changelog
+* Wed Nov 08 2017 Richard W.M. Jones <rjones@redhat.com> - 1.7.3-8
+- BR ocaml-num-devel (unfortunately a circular dependency).
+
 * Tue Nov 07 2017 Richard W.M. Jones <rjones@redhat.com> - 1.7.3-7
 - OCaml 4.06.0 rebuild.