diff --git a/pillar/settings.py b/pillar/settings.py
index a0c6b7e2..3c13caff 100644
--- a/pillar/settings.py
+++ b/pillar/settings.py
@@ -268,7 +268,7 @@ files_schema = {
             'embeddable': True
          },
     },
-    'contentType': { # MIME type image/png video/mp4
+    'content_type': { # MIME type image/png video/mp4
         'type': 'string',
         'required': True,
     },