diff --git a/libguestfs.spec b/libguestfs.spec
index 56905e1..3e44075 100644
--- a/libguestfs.spec
+++ b/libguestfs.spec
@@ -50,7 +50,7 @@ Summary:       Access and modify virtual machine disk images
 Name:          libguestfs
 Epoch:         1
 Version:       1.51.9
-Release:       3%{?dist}
+Release:       4%{?dist}
 License:       LGPL-2.1-or-later
 
 # Build only for architectures that have a kernel
@@ -1098,6 +1098,9 @@ rm ocaml/html/.gitignore
 
 
 %changelog
+* Mon Dec 18 2023 Richard W.M. Jones <rjones@redhat.com> - 1:1.51.9-4
+- OCaml 5.1.1 + s390x code gen fix for Fedora 40
+
 * Thu Dec 14 2023 Richard W.M. Jones <rjones@redhat.com> - 1:1.51.9-3
 - Fixes for https://github.com/ocaml/ocaml/issues/12820