diff --git a/cookbooks/promtail/templates/etc/promtail/base.yaml b/cookbooks/promtail/templates/etc/promtail/base.yaml
index 204f3a7..10e013e 100644
--- a/cookbooks/promtail/templates/etc/promtail/base.yaml
+++ b/cookbooks/promtail/templates/etc/promtail/base.yaml
@@ -98,7 +98,7 @@ scrape_configs:
 
         stages:
         - drop:
-            expression: (CRON|sudo)
+            expression: (CRON|sudo|session)
 
         - regex:
             expression: '^(?P<timestamp>\w+ +[0-9]+ [0-9]+:[0-9]+:[0-9]+) [^:]+: (?P<message>.+)$'