diff --git a/backend/provisioner.py b/backend/provisioner.py
index 49c3be7..b254b5f 100644
--- a/backend/provisioner.py
+++ b/backend/provisioner.py
@@ -308,6 +308,9 @@ def _process_job(job_id: str, req: JobSubmissionRequest):
         _update_job(job_id, status=JobStatus.PROCESSING_CONVERSION, progress=10,
                      message="Converting disk image...")
 
+        _update_job(job_id, status=JobStatus.PROCESSING_CONVERSION, progress=5,
+                     message="Preparing source files...")
+
         out_dir = _staging_out(req.session_id) / str(vmid)
         out_dir.mkdir(parents=True, exist_ok=True)