diff --git a/src/wanijo/framework/devmode.clj b/src/wanijo/framework/devmode.clj
index 6f19865..a71c5a2 100644
--- a/src/wanijo/framework/devmode.clj
+++ b/src/wanijo/framework/devmode.clj
@@ -1,5 +1,6 @@
 (ns wanijo.framework.devmode
-  (:require [hiccup.core :as hcore]))
+  (:require [hiccup.core :as hcore]
+            [clojure.string :as cljs]))
 
 (def bar-entries (atom []))
 
@@ -22,7 +23,7 @@
 
 (defn append-devbar [resp]
   (let [body (:body resp)
-        new-body (clojure.string/replace
+        new-body (cljs/replace
                   body "</body>" (str (devbar resp) "</body>"))]
     (assoc resp :body new-body)))