diff --git a/cinder/image/image_utils.py b/cinder/image/image_utils.py
index 3fc9ba249a2..e1abbb575c2 100644
--- a/cinder/image/image_utils.py
+++ b/cinder/image/image_utils.py
@@ -448,7 +448,7 @@ def fetch_to_volume_format(context, image_service,
 
         # NOTE(e0ne): check for free space in destination directory before
         # image conversion.
-        check_available_space(dest, virt_size, image_id)
+        check_available_space(dest, data.virtual_size, image_id)
 
         # NOTE(jdg): I'm using qemu-img convert to write
         # to the volume regardless if it *needs* conversion or not