diff --git a/dune/common/exceptions.hh b/dune/common/exceptions.hh
index 7fa01ca8906e4f103767608428d2fea0b649a161..549085508b2186d67e9fb4580644ef4f1e6c6b27 100644
--- a/dune/common/exceptions.hh
+++ b/dune/common/exceptions.hh
@@ -69,7 +69,7 @@ namespace Dune {
    */
 
   /* forward declarations */
-  struct Exception;
+  class Exception;
   struct ExceptionHook;
 
   /*! \class Exception