diff --git a/common/fixedarray.hh b/common/fixedarray.hh
index 164cf1684b8c8be2ab5477675915678128636813..79793d38afe3f7f698d4fcee8d1d9d524ec2f2a7 100644
--- a/common/fixedarray.hh
+++ b/common/fixedarray.hh
@@ -91,6 +91,12 @@ namespace Dune
       return (*this);
     }
 
+    //! \brief Assign value to all entries
+    void assign(const T& t)
+    {
+      for (int i=0; i<N; i++) a[i]=t;
+    }
+
     //! Component access
     reference operator[] (size_type i)
     {