diff --git a/nbdkit.spec b/nbdkit.spec
index f7d1a61..557b04d 100644
--- a/nbdkit.spec
+++ b/nbdkit.spec
@@ -4,11 +4,15 @@
 %global have_libguestfs 1
 %endif
 
+# Disable OCaml plugin on riscv64.  Enable it again when the PIC
+# issues have been fixed, in OCaml 4.09.0.
+%ifnarch riscv64
 # We can only compiler the OCaml plugin on platforms which have native
 # OCaml support (not bytecode).
 %ifarch %{ocaml_native_compiler}
 %global have_ocaml 1
 %endif
+%endif
 
 # Architectures where the complete test suite must pass.
 #
@@ -29,7 +33,7 @@
 
 Name:           nbdkit
 Version:        1.16.0
-Release:        4%{?dist}
+Release:        5%{?dist}
 Summary:        NBD server
 
 License:        BSD
@@ -903,11 +907,9 @@ make %{?_smp_mflags} check || {
 
 
 %changelog
-* Fri Nov 15 2019 Richard W.M. Jones <rjones@redhat.com> - 1.16.0-4
-- Rebuild.
-
-* Fri Nov 15 2019 Richard W.M. Jones <rjones@redhat.com> - 1.16.0-2
+* Fri Nov 15 2019 Richard W.M. Jones <rjones@redhat.com> - 1.16.0-5
 - Enable libvirt plugin on all architectures.
+- Disable OCaml plugin on riscv64 temporarily.
 
 * Thu Nov 14 2019 Richard W.M. Jones <rjones@redhat.com> - 1.16.0-1
 - New stable release 1.16.0.