diff --git a/rpm/generic/zfs-dkms.spec.in b/rpm/generic/zfs-dkms.spec.in
index 6f2ae2c79d..568bef988c 100644
--- a/rpm/generic/zfs-dkms.spec.in
+++ b/rpm/generic/zfs-dkms.spec.in
@@ -24,7 +24,7 @@ BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 BuildArch:      noarch
 
 Requires:       dkms >= 2.2.0.3
-Requires:       gcc, make, perl
+Requires:       gcc, make, perl, diffutils
 %if 0%{?rhel}%{?fedora}%{?mageia}%{?suse_version}
 Requires:       kernel-devel
 Obsoletes:      spl-dkms