diff --git a/dune/solvers/operators/nulloperator.hh b/dune/solvers/operators/nulloperator.hh
index 4a63dd4ae73e6922d64fae0b3c33eadbe663671a..4ab35a4ce7474e1e38f05f46ae0c01d3dc57090d 100644
--- a/dune/solvers/operators/nulloperator.hh
+++ b/dune/solvers/operators/nulloperator.hh
@@ -20,7 +20,7 @@ class NullOperator
                 BlockType zero_;
 
             public:
-                RowDummy(): zero_(0){};
+                RowDummy(): zero_(0){}
 
                 const BlockType& operator[](size_t i) const
                 {