diff --git a/frontend/assets/js/app.js b/frontend/assets/js/app.js
index 8e6b165..cd4033d 100644
--- a/frontend/assets/js/app.js
+++ b/frontend/assets/js/app.js
@@ -75,7 +75,7 @@ async function performLogin(authToken) {
             errEl.style.display = 'block';
         }
     } catch (e) {
-        errEl.textContent = 'Connection error';
+        errEl.textContent = 'Connection error: ' + e.message;
         errEl.style.display = 'block';
     }
 }