diff --git a/frontend/src/app/main/worker.cljs b/frontend/src/app/main/worker.cljs
index 401d2822d..8bd60284f 100644
--- a/frontend/src/app/main/worker.cljs
+++ b/frontend/src/app/main/worker.cljs
@@ -11,7 +11,7 @@
 
 (defn on-error
   [error]
-  (js/console.error "Error on worker" error))
+  (js/console.error "Error on worker" (pr-str error)))
 
 (defonce instance (atom nil))
 
diff --git a/frontend/src/app/worker.cljs b/frontend/src/app/worker.cljs
index ea54c3931..52bb72451 100644
--- a/frontend/src/app/worker.cljs
+++ b/frontend/src/app/worker.cljs
@@ -53,7 +53,7 @@
             (post {:payload result}))
 
           (reply-error [err]
-            (.error js/console "error" err)
+            (.error js/console "error" (pr-str err))
             (post {:error {:data (ex-data err)
                            :message (ex-message err)}}))