diff --git a/ocaml-findlib.spec b/ocaml-findlib.spec
index 8bf510d..50ca8c4 100644
--- a/ocaml-findlib.spec
+++ b/ocaml-findlib.spec
@@ -46,7 +46,7 @@ Recommends:     ocaml-findlib-num
 Recommends:     ocaml-findlib-ocamldoc
 Recommends:     ocaml-findlib-stdlib
 Recommends:     ocaml-findlib-str
-Recommends:     ocaml-findlib-threads
+Requires:       ocaml-findlib-threads
 Recommends:     ocaml-findlib-unix
 
 Provides:       ocamlfind = %{version}