diff --git a/modules/navigation/siren-consult.el b/modules/navigation/siren-consult.el
index 287d1d1..c4b8c3d 100644
--- a/modules/navigation/siren-consult.el
+++ b/modules/navigation/siren-consult.el
@@ -22,7 +22,13 @@
                             consult--source-project-buffer
                             consult--source-project-file))
   (consult-preview-max-count 10)
-  (consult-project-root-function 'projectile-project-root))
+  (consult-project-root-function 'siren-consult-project-root)
+
+  :init
+  (defun siren-consult-project-root (&rest args)
+    "Call projectile-project-root if defined, otherwise return empty string."
+    (if (fboundp 'projectile-project-root)
+        (apply 'projectile-project-root args) "")))
 
 (provide 'siren-consult)
 ;;; siren-consult.el ends here