diff --git a/client-src/default/overlay.js b/client-src/default/overlay.js
index 6fd9d2ebf3..3f9a52ac21 100644
--- a/client-src/default/overlay.js
+++ b/client-src/default/overlay.js
@@ -113,7 +113,8 @@ function clear() {
function showMessage(messages) {
ensureOverlayDivExists((div) => {
// Make it look similar to our terminal.
- const text = ansiHTML(entities.encode(messages[0]));
+ const errorMessage = messages[0].message || messages[0];
+ const text = ansiHTML(entities.encode(errorMessage));
div.innerHTML = `Failed to compile.
${text}`;
});