diff --git a/client/coral-framework/helpers/validate.js b/client/coral-framework/helpers/validate.js
index 7aa4ccc72..c1b41e904 100644
--- a/client/coral-framework/helpers/validate.js
+++ b/client/coral-framework/helpers/validate.js
@@ -2,5 +2,5 @@ export default {
   email: email => (/^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/.test(email)),
   password: pass => !(/^(?=.{8,}).*$/.test(pass)),
   confirmPassword: () => true,
-  displayName: displayName => (/^[a-z0-9_]+$/.test(displayName))
+  displayName: displayName => (/^[a-zA-Z0-9_]+$/.test(displayName))
 };