diff --git a/common/singleton.hh b/common/singleton.hh
index 8fe05b670f2a068786f56f30da4d89c22eca61a4..397f5855f63407638cb88d69632c2e2c1f8ec451 100644
--- a/common/singleton.hh
+++ b/common/singleton.hh
@@ -1,7 +1,7 @@
 // -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 // vi: set et ts=4 sw=2 sts=2:
 #ifndef DUNE_SINGLETON_HH
-#define DUEN_DINGLETON_HH
+#define DUNE_SINGLETON_HH
 /**
  * @file
  * @brief Usefull wrapper for creating singletons.