diff --git a/METADATA.yml b/METADATA.yml
index c061911..553629c 100644
--- a/METADATA.yml
+++ b/METADATA.yml
@@ -29,7 +29,7 @@ hands:
   count: unknown
   level: levelmix
 license:
-  - name: CC0 1.0
+  - name: CC0-1.0
     url: https://creativecommons.org/licenses/zero/1.0/
 gtType: data_structure
 format: Page-XML