diff --git a/supermin.spec b/supermin.spec
index ebf8de5..fd202d1 100644
--- a/supermin.spec
+++ b/supermin.spec
@@ -8,7 +8,7 @@
 # https://bugzilla.redhat.com/show_bug.cgi?id=1204162
 %undefine _hardened_build
 
-# On armv7 and x86, the default is ``--with dietlibc''.
+# On architectures that support it, the default is ``--with dietlibc''.
 #
 # To use glibc-static instead, do ``--without dietlibc''.  This
 # results in a much larger (about 40 times larger) init binary.
@@ -19,7 +19,7 @@
 # See also:
 # https://github.com/libguestfs/supermin/commit/9bb57e1a8d0f3b57eb09f65dd574f702b67e1c2f
 
-%ifarch %{arm} %{ix86} x86_64 s390x
+%ifarch aarch64 %{arm} %{ix86} %{power} s390x x86_64
 %bcond_without dietlibc
 %else
 %bcond_with dietlibc
@@ -31,7 +31,7 @@
 Summary:       Tool for creating supermin appliances
 Name:          supermin
 Version:       5.1.17
-Release:       4%{?dist}
+Release:       5%{?dist}
 License:       GPLv2+
 
 %if 0%{?rhel} >= 7
@@ -170,6 +170,9 @@ make check || {
 
 
 %changelog
+* Sat Mar 18 2017 Richard W.M. Jones <rjones@redhat.com> - 5.1.17-5
+- Enable dietlibc on aarch64 and POWER.
+
 * Fri Mar 17 2017 Richard W.M. Jones <rjones@redhat.com> - 5.1.17-4
 - Drop dependency on hawkey and versioned dependencies on dnf.