diff --git a/common/poolallocator.hh b/common/poolallocator.hh
index bd0d029fca8b55b7685ebe6a4dcb7173d5c021a3..030e73e373a857ae3483975e80ec276181f9f138 100644
--- a/common/poolallocator.hh
+++ b/common/poolallocator.hh
@@ -225,7 +225,7 @@ namespace Dune
    *
    * @warning It is not suitable
    * for the use in standard containers as it cannot allocate
-   * arrays of arbituary size
+   * arrays of arbitrary size
    */
   template<class T, std::size_t s>
   class PoolAllocator