diff --git a/openmpi.spec b/openmpi.spec
index 3eda417..1447bf0 100644
--- a/openmpi.spec
+++ b/openmpi.spec
@@ -14,7 +14,7 @@ Source4:	openmpi.module.in
 BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 BuildRequires:  gcc-gfortran, autoconf, automake, libtool
 %ifarch i386 ia64 x86_64 ppc ppc64
-BuildRequires: libibverbs-devel, opensm-devel
+BuildRequires: libibverbs-devel, opensm-devel, libsysfs-devel
 %endif
 Requires(post): /sbin/ldconfig