diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c
index bc116e4e2d9df55280df5cca20fdb0c3d9c3b6f8..45cd51e43f6a3087a2b9dd03265dbc2f518a6faa 100644
--- a/src/qemu/qemu_monitor.c
+++ b/src/qemu/qemu_monitor.c
@@ -3203,23 +3203,6 @@ qemuMonitorDeleteSnapshot(qemuMonitorPtr mon, const char *name)
 }
 
 
-/* Use the snapshot_blkdev command to convert the existing file for
- * device into a read-only backing file of a new qcow2 image located
- * at file.  */
-int
-qemuMonitorDiskSnapshot(qemuMonitorPtr mon, virJSONValuePtr actions,
-                        const char *device, const char *file,
-                        const char *format, bool reuse)
-{
-    VIR_DEBUG("actions=%p, device=%s, file=%s, format=%s, reuse=%d",
-              actions, device, file, format, reuse);
-
-    QEMU_CHECK_MONITOR(mon);
-
-    return qemuMonitorJSONDiskSnapshot(mon, actions, device, file, format, reuse);
-}
-
-
 /* Start a drive-mirror block job.  bandwidth is in bytes/sec.  */
 int
 qemuMonitorDriveMirror(qemuMonitorPtr mon,
diff --git a/src/qemu/qemu_monitor.h b/src/qemu/qemu_monitor.h
index 81474a04f6d352c587e56b0548250300774967c0..b8e3ca2ce1e4b724e140c01bc0f5e2cad5fdb83b 100644
--- a/src/qemu/qemu_monitor.h
+++ b/src/qemu/qemu_monitor.h
@@ -839,12 +839,6 @@ int qemuMonitorCreateSnapshot(qemuMonitorPtr mon, const char *name);
 int qemuMonitorLoadSnapshot(qemuMonitorPtr mon, const char *name);
 int qemuMonitorDeleteSnapshot(qemuMonitorPtr mon, const char *name);
 
-int qemuMonitorDiskSnapshot(qemuMonitorPtr mon,
-                            virJSONValuePtr actions,
-                            const char *device,
-                            const char *file,
-                            const char *format,
-                            bool reuse);
 int qemuMonitorTransaction(qemuMonitorPtr mon, virJSONValuePtr *actions)
     ATTRIBUTE_NONNULL(2);
 int qemuMonitorDriveMirror(qemuMonitorPtr mon,
diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c
index 95ad53fc89a4e10803232ec130f235eb7cdaaeaf..2906f9bd2653aa4a6aba4f9de53fe3bac4b7acd1 100644
--- a/src/qemu/qemu_monitor_json.c
+++ b/src/qemu/qemu_monitor_json.c
@@ -4112,43 +4112,6 @@ int qemuMonitorJSONDelObject(qemuMonitorPtr mon,
 }
 
 
-int
-qemuMonitorJSONDiskSnapshot(qemuMonitorPtr mon, virJSONValuePtr actions,
-                            const char *device, const char *file,
-                            const char *format, bool reuse)
-{
-    int ret = -1;
-    virJSONValuePtr cmd;
-    virJSONValuePtr reply = NULL;
-
-    cmd = qemuMonitorJSONMakeCommandRaw(actions != NULL,
-                                        "blockdev-snapshot-sync",
-                                        "s:device", device,
-                                        "s:snapshot-file", file,
-                                        "s:format", format,
-                                        "S:mode", reuse ? "existing" : NULL,
-                                        NULL);
-    if (!cmd)
-        return -1;
-
-    if (actions) {
-        if (virJSONValueArrayAppend(actions, cmd) == 0) {
-            ret = 0;
-            cmd = NULL;
-        }
-    } else {
-        if ((ret = qemuMonitorJSONCommand(mon, cmd, &reply)) < 0)
-            goto cleanup;
-
-        ret = qemuMonitorJSONCheckError(cmd, reply);
-    }
-
- cleanup:
-    virJSONValueFree(cmd);
-    virJSONValueFree(reply);
-    return ret;
-}
-
 /* speed is in bytes/sec */
 int
 qemuMonitorJSONDriveMirror(qemuMonitorPtr mon,
diff --git a/src/qemu/qemu_monitor_json.h b/src/qemu/qemu_monitor_json.h
index eb77ea45e05ec50e1d8c7adc6b4972d6e8a0d862..0458d81c0de560cfb85c7b48ddc1067370622db6 100644
--- a/src/qemu/qemu_monitor_json.h
+++ b/src/qemu/qemu_monitor_json.h
@@ -242,14 +242,6 @@ int qemuMonitorJSONAddObject(qemuMonitorPtr mon,
 int qemuMonitorJSONDelObject(qemuMonitorPtr mon,
                              const char *objalias);
 
-int qemuMonitorJSONDiskSnapshot(qemuMonitorPtr mon,
-                                virJSONValuePtr actions,
-                                const char *device,
-                                const char *file,
-                                const char *format,
-                                bool reuse)
-    ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(3)
-    ATTRIBUTE_NONNULL(4) ATTRIBUTE_NONNULL(5);
 int qemuMonitorJSONTransaction(qemuMonitorPtr mon, virJSONValuePtr *actions)
     ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
 int qemuMonitorJSONDriveMirror(qemuMonitorPtr mon,