diff --git a/maas-images.inc b/maas-images.inc
index a3280b2..b38bb7a 100644
--- a/maas-images.inc
+++ b/maas-images.inc
@@ -51,7 +51,7 @@ function download_and_verify()
     local fname="$2"
 
     file_url "$release_version" "$fname"
-    checksum "$release_version" "$fname"
+    get_checksum "$release_version" "$fname"
 
     wget "$url" -O "$fname"
     sha256sum=$(sha256sum "$fname")