diff --git a/js/gdm/loginDialog.js b/js/gdm/loginDialog.js
index 46478aa2d..1651af94f 100644
--- a/js/gdm/loginDialog.js
+++ b/js/gdm/loginDialog.js
@@ -449,7 +449,7 @@ const LoginDialog = new Lang.Class({
                                      x_fill: true,
                                      y_fill: true });
 
-        this._authPrompt = new AuthPrompt.AuthPrompt(gdmClient, AuthPrompt.AuthPromptMode.UNLOCK_OR_LOGIN);
+        this._authPrompt = new AuthPrompt.AuthPrompt(gdmClient, AuthPrompt.AuthPromptMode.UNLOCK_OR_LOG_IN);
         this._authPrompt.connect('prompted', Lang.bind(this, this._onPrompted));
         this._authPrompt.connect('reset', Lang.bind(this, this._reset));
         this._authPrompt.hide();