diff --git a/block/backup.c b/block/backup.c
index d374472da8..cad14c90b2 100644
--- a/block/backup.c
+++ b/block/backup.c
@@ -204,7 +204,7 @@ static void backup_iostatus_reset(BlockJob *job)
 
 static const BlockJobDriver backup_job_driver = {
     .instance_size  = sizeof(BackupBlockJob),
-    .job_type       = "backup",
+    .job_type       = BLOCK_JOB_TYPE_BACKUP,
     .set_speed      = backup_set_speed,
     .iostatus_reset = backup_iostatus_reset,
 };
diff --git a/block/commit.c b/block/commit.c
index 5146138c67..d4090cbf7d 100644
--- a/block/commit.c
+++ b/block/commit.c
@@ -175,7 +175,7 @@ static void commit_set_speed(BlockJob *job, int64_t speed, Error **errp)
 
 static const BlockJobDriver commit_job_driver = {
     .instance_size = sizeof(CommitBlockJob),
-    .job_type      = "commit",
+    .job_type      = BLOCK_JOB_TYPE_COMMIT,
     .set_speed     = commit_set_speed,
 };
 
diff --git a/block/mirror.c b/block/mirror.c
index 991cc243bc..7b95acf88c 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -527,7 +527,7 @@ static void mirror_complete(BlockJob *job, Error **errp)
 
 static const BlockJobDriver mirror_job_driver = {
     .instance_size = sizeof(MirrorBlockJob),
-    .job_type      = "mirror",
+    .job_type      = BLOCK_JOB_TYPE_MIRROR,
     .set_speed     = mirror_set_speed,
     .iostatus_reset= mirror_iostatus_reset,
     .complete      = mirror_complete,
diff --git a/block/stream.c b/block/stream.c
index 7f412bda59..694fd42e41 100644
--- a/block/stream.c
+++ b/block/stream.c
@@ -205,7 +205,7 @@ static void stream_set_speed(BlockJob *job, int64_t speed, Error **errp)
 
 static const BlockJobDriver stream_job_driver = {
     .instance_size = sizeof(StreamBlockJob),
-    .job_type      = "stream",
+    .job_type      = BLOCK_JOB_TYPE_STREAM,
     .set_speed     = stream_set_speed,
 };
 
diff --git a/blockjob.c b/blockjob.c
index 6814e699fc..9e5fd5c162 100644
--- a/blockjob.c
+++ b/blockjob.c
@@ -209,7 +209,7 @@ void block_job_sleep_ns(BlockJob *job, QEMUClockType type, int64_t ns)
 BlockJobInfo *block_job_query(BlockJob *job)
 {
     BlockJobInfo *info = g_new0(BlockJobInfo, 1);
-    info->type      = g_strdup(job->driver->job_type);
+    info->type      = g_strdup(BlockJobType_lookup[job->driver->job_type]);
     info->device    = g_strdup(bdrv_get_device_name(job->bs));
     info->len       = job->len;
     info->busy      = job->busy;
@@ -236,7 +236,7 @@ QObject *qobject_from_block_job(BlockJob *job)
                               "'len': %" PRId64 ","
                               "'offset': %" PRId64 ","
                               "'speed': %" PRId64 " }",
-                              job->driver->job_type,
+                              BlockJobType_lookup[job->driver->job_type],
                               bdrv_get_device_name(job->bs),
                               job->len,
                               job->offset,
diff --git a/include/block/blockjob.h b/include/block/blockjob.h
index 99359b5502..d76de62a46 100644
--- a/include/block/blockjob.h
+++ b/include/block/blockjob.h
@@ -37,7 +37,7 @@ typedef struct BlockJobDriver {
     size_t instance_size;
 
     /** String describing the operation, part of query-block-jobs QMP API */
-    const char *job_type;
+    BlockJobType job_type;
 
     /** Optional callback for job types that support setting a speed limit */
     void (*set_speed)(BlockJob *job, int64_t speed, Error **errp);