diff --git a/mu4e/mu4e-notification.el b/mu4e/mu4e-notification.el
index c17567ca..d0a0c8a0 100644
--- a/mu4e/mu4e-notification.el
+++ b/mu4e/mu4e-notification.el
@@ -38,8 +38,6 @@ now."
   :type 'function
   :group 'mu4e-notification)
 
-(defvar mu4e--last-delta-unread 0
-  "Last notified number.")
 (defvar mu4e--notification-id nil
   "The last notification id, so we can replace it.")
 
diff --git a/mu4e/mu4e-query-items.el b/mu4e/mu4e-query-items.el
index ef0ff5b8..745b91b8 100644
--- a/mu4e/mu4e-query-items.el
+++ b/mu4e/mu4e-query-items.el
@@ -67,6 +67,7 @@ This is used as the baseline to track updates by comparing it to
 the latest query-items.")
 (defvar mu4e--query-items-baseline-tstamp nil
   "Timestamp for when the query-items baseline was updated.")
+(defvar mu4e--last-delta-unread 0 "Last notified number.")
 
 (defun mu4e--bookmark-query (bm)
   "Get the query string for some bookmark BM."
@@ -122,7 +123,8 @@ With RESET-BASELINE, reset the baseline first."
     (setq mu4e--query-items-baseline nil
           mu4e--query-items-baseline-tstamp nil
           mu4e--bookmark-items-cached nil
-          mu4e--maildir-items-cached nil))
+          mu4e--maildir-items-cached nil
+          mu4e--last-delta-unread 0))
   (mu4e--server-queries
    ;; note: we must apply the rewrite function here, since the query does not go
    ;; through mu4e-search.