diff --git a/roles/matrix-sms-bridge/defaults/main.yml b/roles/matrix-sms-bridge/defaults/main.yml
index 428560f5..faf2b6fc 100644
--- a/roles/matrix-sms-bridge/defaults/main.yml
+++ b/roles/matrix-sms-bridge/defaults/main.yml
@@ -115,10 +115,10 @@ matrix_sms_bridge_gammu_configuration: |
   [smsd]
   Service = files
   LoopSleep = 2
-  InboxPath = /data/spool/inbox
-  OutboxPath = /data/spool/outbox
-  SentSMSPath = /data/spool/sent
-  ErrorSMSPath = /data/spool/error
+  InboxPath = /data/spool/inbox/
+  OutboxPath = /data/spool/outbox/
+  SentSMSPath = /data/spool/sent/
+  ErrorSMSPath = /data/spool/error/
   InboxFormat = detail
   OutboxFormat = detail
   TransmitFormat = auto