diff --git a/ocaml-biniou.spec b/ocaml-biniou.spec
index f1480ea..75583fa 100644
--- a/ocaml-biniou.spec
+++ b/ocaml-biniou.spec
@@ -5,7 +5,7 @@
 
 Name:           ocaml-biniou
 Version:        1.0.9
-Release:        17%{?dist}
+Release:        18%{?dist}
 Summary:        Safe and fast binary data format
 
 License:        BSD
@@ -17,6 +17,10 @@ BuildRequires:  ocaml-findlib
 BuildRequires:  ocaml-easy-format-devel
 BuildRequires:  ocaml-ocamldoc
 
+%if 0%{?epel}
+ExcludeArch:   ppc64
+%endif
+
 %global libname %(sed -e 's/^ocaml-//' <<< %{name})
 
 %description
@@ -107,6 +111,9 @@ make test
 
 
 %changelog
+* Thu Sep 24 2015 Ding-Yi Chen <dchen@redhat.com> - 1.0.9-18
+- Exclude ppc64 for EPEL, as ocaml-findlib-devel is not available on it.
+
 * Tue Jul 28 2015 Richard W.M. Jones <rjones@redhat.com> - 1.0.9-17
 - OCaml 4.02.3 rebuild.