diff --git a/dash/include/dash/halo/Halo.h b/dash/include/dash/halo/Halo.h
index bb04dbf8a..f5f1b6036 100644
--- a/dash/include/dash/halo/Halo.h
+++ b/dash/include/dash/halo/Halo.h
@@ -528,7 +528,7 @@ class RegionCoords : public Dimensional<uint8_t, NumDimensions> {
  * The region extent applies to all dimensions.
  */
 template <dim_t NumDimensions>
-class RegionSpec : public Dimensional<uint8_t, NumDimensions> {
+class RegionSpec {
 private:
   using Self_t = RegionSpec<NumDimensions>;