diff --git a/0001-qemu-Fix-transcription-error-in-conversion-of-yajl-t.patch b/0001-qemu-Fix-transcription-error-in-conversion-of-yajl-t.patch
deleted file mode 100644
index fdc7d26..0000000
--- a/0001-qemu-Fix-transcription-error-in-conversion-of-yajl-t.patch
+++ /dev/null
@@ -1,29 +0,0 @@
-From e79286f71738d9385157d9e87211be02645722c3 Mon Sep 17 00:00:00 2001
-From: "Richard W.M. Jones" <rjones@redhat.com>
-Date: Thu, 29 Mar 2018 20:18:34 +0100
-Subject: [PATCH] qemu: Fix transcription error in conversion of yajl to
- jansson.
-
-This broke qemu mandatory locking detection.
-
-Fixes commit bd1c5c9f4dcf38458099db8a0bf4659a07ef055d.
----
- lib/qemu.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/lib/qemu.c b/lib/qemu.c
-index a50eca988..3e7f15946 100644
---- a/lib/qemu.c
-+++ b/lib/qemu.c
-@@ -616,7 +616,7 @@ guestfs_int_qemu_mandatory_locking (guestfs_h *g,
-       members = json_object_get (v, "members");
-       if (json_is_array (members)) {
-         json_array_foreach (members, j, m) {
--          name = json_object_get (v, "name");
-+          name = json_object_get (m, "name");
-           if (json_is_string (name) &&
-               STREQ (json_string_value (name), "locking"))
-             return 1;
--- 
-2.15.1
-
diff --git a/libguestfs.spec b/libguestfs.spec
index ccdac56..68fa44e 100644
--- a/libguestfs.spec
+++ b/libguestfs.spec
@@ -49,9 +49,6 @@ Source0:       http://libguestfs.org/download/1.38-stable/%{name}-%{version}.tar
 Source1:       http://libguestfs.org/download/1.38-stable/%{name}-%{version}.tar.gz.sig
 %endif
 
-# Upstream patch fixes qemu mandatory locking detection.
-Patch1:        0001-qemu-Fix-transcription-error-in-conversion-of-yajl-t.patch
-
 # Replacement README file for Fedora users.
 Source4:       README-replacement.in
 
@@ -1409,6 +1406,7 @@ install -m 0644 utils/boot-benchmark/boot-benchmark.1 $RPM_BUILD_ROOT%{_mandir}/
 %changelog
 * Sun Apr 22 2018 Richard W.M. Jones <rjones@redhat.com> - 1:1.39.3-1
 - New upstream version 1.39.3.
+- Remove upstream patch.
 
 * Tue Apr 10 2018 Iryna Shcherbina <shcherbina.iryna@gmail.com> - 1:1.39.2-3
 - Update Python 2 dependency declarations to new packaging standards