diff --git a/modules/reitit-core/src/reitit/core.cljc b/modules/reitit-core/src/reitit/core.cljc
index 552b8377..f7fe9c83 100644
--- a/modules/reitit-core/src/reitit/core.cljc
+++ b/modules/reitit-core/src/reitit/core.cljc
@@ -1,4 +1,5 @@
 (ns reitit.core
+  (:refer-clojure :exclude [-lookup])
   (:require [meta-merge.core :refer [meta-merge]]
             [clojure.string :as str]
             [reitit.segment :as segment]