diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c
index 68a9e0a874..0246189224 100644
--- a/src/qemu/qemu_monitor.c
+++ b/src/qemu/qemu_monitor.c
@@ -3323,13 +3323,13 @@ qemuMonitorDiskNameLookup(qemuMonitorPtr mon,
 /* Use the block-job-complete monitor command to pivot a block copy job.  */
 int
 qemuMonitorDrivePivot(qemuMonitorPtr mon,
-                      const char *device)
+                      const char *jobname)
 {
-    VIR_DEBUG("device=%s", device);
+    VIR_DEBUG("jobname=%s", jobname);
 
     QEMU_CHECK_MONITOR(mon);
 
-    return qemuMonitorJSONDrivePivot(mon, device);
+    return qemuMonitorJSONDrivePivot(mon, jobname);
 }
 
 
@@ -3403,26 +3403,26 @@ qemuMonitorBlockStream(qemuMonitorPtr mon,
 
 int
 qemuMonitorBlockJobCancel(qemuMonitorPtr mon,
-                          const char *device)
+                          const char *jobname)
 {
-    VIR_DEBUG("device=%s", device);
+    VIR_DEBUG("jobname=%s", jobname);
 
     QEMU_CHECK_MONITOR(mon);
 
-    return qemuMonitorJSONBlockJobCancel(mon, device);
+    return qemuMonitorJSONBlockJobCancel(mon, jobname);
 }
 
 
 int
 qemuMonitorBlockJobSetSpeed(qemuMonitorPtr mon,
-                            const char *device,
+                            const char *jobname,
                             unsigned long long bandwidth)
 {
-    VIR_DEBUG("device=%s, bandwidth=%lluB", device, bandwidth);
+    VIR_DEBUG("jobname=%s, bandwidth=%lluB", jobname, bandwidth);
 
     QEMU_CHECK_MONITOR(mon);
 
-    return qemuMonitorJSONBlockJobSetSpeed(mon, device, bandwidth);
+    return qemuMonitorJSONBlockJobSetSpeed(mon, jobname, bandwidth);
 }
 
 
diff --git a/src/qemu/qemu_monitor.h b/src/qemu/qemu_monitor.h
index e4c71eda50..48b142a4f4 100644
--- a/src/qemu/qemu_monitor.h
+++ b/src/qemu/qemu_monitor.h
@@ -872,7 +872,7 @@ int qemuMonitorBlockdevMirror(qemuMonitorPtr mon,
                               unsigned int flags)
     ATTRIBUTE_NONNULL(3) ATTRIBUTE_NONNULL(4);
 int qemuMonitorDrivePivot(qemuMonitorPtr mon,
-                          const char *device)
+                          const char *jobname)
     ATTRIBUTE_NONNULL(2);
 
 int qemuMonitorBlockCommit(qemuMonitorPtr mon,
@@ -914,11 +914,11 @@ int qemuMonitorBlockStream(qemuMonitorPtr mon,
     ATTRIBUTE_NONNULL(2);
 
 int qemuMonitorBlockJobCancel(qemuMonitorPtr mon,
-                              const char *device)
+                              const char *jobname)
     ATTRIBUTE_NONNULL(2);
 
 int qemuMonitorBlockJobSetSpeed(qemuMonitorPtr mon,
-                                const char *device,
+                                const char *jobname,
                                 unsigned long long bandwidth);
 
 typedef struct _qemuMonitorBlockJobInfo qemuMonitorBlockJobInfo;
diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c
index abcb60d3a1..2c3ba27cbf 100644
--- a/src/qemu/qemu_monitor_json.c
+++ b/src/qemu/qemu_monitor_json.c
@@ -4768,14 +4768,14 @@ qemuMonitorJSONGetAllBlockJobInfo(qemuMonitorPtr mon)
 static int
 qemuMonitorJSONBlockJobError(virJSONValuePtr cmd,
                              virJSONValuePtr reply,
-                             const char *device)
+                             const char *jobname)
 {
     virJSONValuePtr error;
 
     if ((error = virJSONValueObjectGet(reply, "error")) &&
         (qemuMonitorJSONErrorIsClass(error, "DeviceNotActive"))) {
         virReportError(VIR_ERR_OPERATION_INVALID,
-                       _("No active operation on device: %s"), device);
+                       _("No active block job '%s'"), jobname);
         return -1;
     }
 
@@ -4820,21 +4820,21 @@ qemuMonitorJSONBlockStream(qemuMonitorPtr mon,
 
 int
 qemuMonitorJSONBlockJobCancel(qemuMonitorPtr mon,
-                              const char *device)
+                              const char *jobname)
 {
     int ret = -1;
     virJSONValuePtr cmd = NULL;
     virJSONValuePtr reply = NULL;
 
     if (!(cmd = qemuMonitorJSONMakeCommand("block-job-cancel",
-                                           "s:device", device,
+                                           "s:device", jobname,
                                            NULL)))
         return -1;
 
     if (qemuMonitorJSONCommand(mon, cmd, &reply) < 0)
         goto cleanup;
 
-    if (qemuMonitorJSONBlockJobError(cmd, reply, device) < 0)
+    if (qemuMonitorJSONBlockJobError(cmd, reply, jobname) < 0)
         goto cleanup;
 
     ret = 0;
@@ -4848,7 +4848,7 @@ qemuMonitorJSONBlockJobCancel(qemuMonitorPtr mon,
 
 int
 qemuMonitorJSONBlockJobSetSpeed(qemuMonitorPtr mon,
-                                const char *device,
+                                const char *jobname,
                                 unsigned long long speed)
 {
     int ret = -1;
@@ -4856,7 +4856,7 @@ qemuMonitorJSONBlockJobSetSpeed(qemuMonitorPtr mon,
     virJSONValuePtr reply = NULL;
 
     if (!(cmd = qemuMonitorJSONMakeCommand("block-job-set-speed",
-                                           "s:device", device,
+                                           "s:device", jobname,
                                            "J:speed", speed,
                                            NULL)))
         return -1;
@@ -4864,7 +4864,7 @@ qemuMonitorJSONBlockJobSetSpeed(qemuMonitorPtr mon,
     if (qemuMonitorJSONCommand(mon, cmd, &reply) < 0)
         goto cleanup;
 
-    if (qemuMonitorJSONBlockJobError(cmd, reply, device) < 0)
+    if (qemuMonitorJSONBlockJobError(cmd, reply, jobname) < 0)
         goto cleanup;
 
     ret = 0;
@@ -4878,14 +4878,14 @@ qemuMonitorJSONBlockJobSetSpeed(qemuMonitorPtr mon,
 
 int
 qemuMonitorJSONDrivePivot(qemuMonitorPtr mon,
-                          const char *device)
+                          const char *jobname)
 {
     int ret = -1;
     virJSONValuePtr cmd;
     virJSONValuePtr reply = NULL;
 
     cmd = qemuMonitorJSONMakeCommand("block-job-complete",
-                                     "s:device", device,
+                                     "s:device", jobname,
                                      NULL);
     if (!cmd)
         return -1;
@@ -4893,7 +4893,7 @@ qemuMonitorJSONDrivePivot(qemuMonitorPtr mon,
     if (qemuMonitorJSONCommand(mon, cmd, &reply) < 0)
         goto cleanup;
 
-    if (qemuMonitorJSONBlockJobError(cmd, reply, device) < 0)
+    if (qemuMonitorJSONBlockJobError(cmd, reply, jobname) < 0)
         goto cleanup;
 
     ret = 0;
diff --git a/src/qemu/qemu_monitor_json.h b/src/qemu/qemu_monitor_json.h
index 51214e3797..69faecd0ab 100644
--- a/src/qemu/qemu_monitor_json.h
+++ b/src/qemu/qemu_monitor_json.h
@@ -267,7 +267,7 @@ int qemuMonitorJSONBlockdevMirror(qemuMonitorPtr mon,
                                   unsigned int flags)
     ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(3) ATTRIBUTE_NONNULL(4);
 int qemuMonitorJSONDrivePivot(qemuMonitorPtr mon,
-                              const char *device)
+                              const char *jobname)
     ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
 
 int qemuMonitorJSONBlockCommit(qemuMonitorPtr mon,
@@ -310,11 +310,11 @@ int qemuMonitorJSONBlockStream(qemuMonitorPtr mon,
     ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
 
 int qemuMonitorJSONBlockJobCancel(qemuMonitorPtr mon,
-                                  const char *device)
+                                  const char *jobname)
     ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
 
 int qemuMonitorJSONBlockJobSetSpeed(qemuMonitorPtr mon,
-                                    const char *device,
+                                    const char *jobname,
                                     unsigned long long speed)
     ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);