diff --git a/org-roam-buffer.el b/org-roam-buffer.el
index 30ea995..148a7f7 100644
--- a/org-roam-buffer.el
+++ b/org-roam-buffer.el
@@ -64,11 +64,13 @@ Valid values are
  * left,
  * right,
  * top,
- * bottom."
+ * bottom,
+ * a function returning one of the above."
   :type '(choice (const left)
                  (const right)
                  (const top)
-                 (const bottom))
+                 (const bottom)
+                 function)
   :group 'org-roam)
 
 (defcustom org-roam-buffer-width 0.33
@@ -293,14 +295,9 @@ Valid states are 'visible, 'exists and 'none."
 
 (defun org-roam-buffer--get-create ()
   "Set up the `org-roam' buffer at `org-roam-buffer-position'."
-  (let ((position
-         (if (member org-roam-buffer-position '(right left top bottom))
-             org-roam-buffer-position
-           (let ((text-quoting-style 'grave))
-             (lwarn '(org-roam) :error
-                    "Invalid org-roam-buffer-position: %s. Defaulting to \\='right"
-                    org-roam-buffer-position))
-           'right)))
+  (let ((position (if (functionp org-roam-buffer-position)
+                      (funcall org-roam-buffer-position)
+                    org-roam-buffer-position)))
     (save-selected-window
       (-> (get-buffer-create org-roam-buffer)
           (display-buffer-in-side-window