diff --git a/src/nextjournal/clerk/builder.clj b/src/nextjournal/clerk/builder.clj
index bda4ae62f..048483083 100644
--- a/src/nextjournal/clerk/builder.clj
+++ b/src/nextjournal/clerk/builder.clj
@@ -318,15 +318,18 @@
       (spit (str tw-folder "/viewer.js")
             (slurp (let [js-url (get resource->url "/js/viewer.js")]
                      (cond->> js-url (view/relative? js-url) (str out-path fs/file-separator)))))
-      (doseq [[src dest] (map (juxt #(io/resource (str "nextjournal/clerk/" %))
-                                    #(doto (fs/path tw-folder %) create-parent-dirs)) files-with-tw-classes)]
-        (fs/copy src dest {:replace-existing true})))
+      (do
+        (println "Tailwind: using cljs source files as input…")
+        (doseq [[src dest] (map (juxt #(io/resource (str "nextjournal/clerk/" %))
+                                      #(doto (fs/path tw-folder %) create-parent-dirs)) files-with-tw-classes)]
+          (fs/copy src dest {:replace-existing true}))))
 
     (doseq [{:keys [file viewer]} docs]
       (spit (let [path (fs/path tw-folder (str/replace (str file) #"\.(cljc?|md)$" ".edn"))]
               (create-parent-dirs path)
               (str path))
             (pr-str viewer)))
+
     (let [tw-command (if (zero? (:exit (try (sh "which tailwindcss") (catch Throwable _)))) "tailwindcss" "npx tailwindcss")
           {:as ret :keys [out err exit]}
           (try (sh tw-command