diff --git a/src/errorReporter.js b/src/errorReporter.js
index ca7fbc992..465098b1d 100644
--- a/src/errorReporter.js
+++ b/src/errorReporter.js
@@ -28,6 +28,7 @@ const overlayStyle = {
   padding: '16px',
   maxHeight: '50%',
   overflow: 'auto',
+  zIndex: 10000
 };
 
 const inlineErrorStyle = {