diff --git a/.config/Nextcloud/sync-exclude.lst b/.config/Nextcloud/sync-exclude.lst
index 21e1813..4490d05 100644
--- a/.config/Nextcloud/sync-exclude.lst
+++ b/.config/Nextcloud/sync-exclude.lst
@@ -47,3 +47,6 @@ My Saved Places.
 \#*#
 
 *.sb-*
+
+# LibreOffice's lock files
+.lock