diff --git a/lib/core/configuration.dart b/lib/core/configuration.dart
index 94d1709da..6b29337de 100644
--- a/lib/core/configuration.dart
+++ b/lib/core/configuration.dart
@@ -130,6 +130,7 @@ class Configuration {
     _key = null;
     _cachedToken = null;
     _secretKey = null;
+    _authSecretKey = null;
     Bus.instance.fire(SignedOutEvent());
   }