diff --git a/metadata.yml b/metadata.yml
index 77e4636df7cb523032964316130b07f4dfbc6eba..a7379bb43b12d7af884489abf02d3af624a4749d 100644
--- a/metadata.yml
+++ b/metadata.yml
@@ -24,7 +24,7 @@ header-includes: |
   \usepackage{csvsimple}
   \usepackage{draftwatermark}
 
-papersize: a4paper
+papersize: a4
 
 geometry: left=24.1mm
 geometry: right=24.1mm