diff --git a/invenio_stats/processors.py b/invenio_stats/processors.py
index 4f119a1..6312082 100644
--- a/invenio_stats/processors.py
+++ b/invenio_stats/processors.py
@@ -140,7 +140,7 @@ def __init__(
         self,
         queue,
         prefix="events",
-        suffix="%Y-%m-%d",
+        suffix="%Y-%m",
         client=None,
         preprocessors=None,
         double_click_window=10,