diff --git a/modules/feature/workspaces/autoload/workspaces.el b/modules/feature/workspaces/autoload/workspaces.el
index f27ee18a9..ce70c67f6 100644
--- a/modules/feature/workspaces/autoload/workspaces.el
+++ b/modules/feature/workspaces/autoload/workspaces.el
@@ -81,6 +81,13 @@ perspectives."
   "Get the name of the currently active workspace."
   (safe-persp-name (get-current-persp)))
 
+;;;###autoload
+(defun +workspace-contains-buffer-p (&optional buffer workspace)
+  "Return non-nil if buffer is in workspace (defaults to current workspace)."
+  (unless workspace
+    (setq workspace (+workspace-current)))
+  (persp-contain-buffer-p buffer workspace nil))
+
 ;;;###autoload
 (defun +workspace-load (name)
   "Loads and inserts a single workspace (named NAME) into the current session.