diff --git a/org-roam-ql.el b/org-roam-ql.el
index 424fbf1..d1f4df9 100644
--- a/org-roam-ql.el
+++ b/org-roam-ql.el
@@ -1235,7 +1235,7 @@ doesn't respect agenda restrict."
 (defun org-roam-ql-nodes-files (source-or-query)
   "Retuns a list of files of the corresponding SOURCE-OR-QUERY.
 See `org-roam-ql-nodes' for more information on SOURCE-OR-QUERY."
-  (-map #'org-roam-node-file (org-roam-ql-nodes source-or-query)))
+  (-uniq (-map #'org-roam-node-file (org-roam-ql-nodes source-or-query))))
 
 ;; *****************************************************************************
 ;; Helper functions