diff --git a/src/assemblers_tmpl.cc b/src/assemblers_tmpl.cc
index f40d6c099af337fe1935a5271a4e318299f482cd..f20d3a3bb461ab48544076d2c87504dbc8d1861f 100644
--- a/src/assemblers_tmpl.cc
+++ b/src/assemblers_tmpl.cc
@@ -5,6 +5,8 @@
 #include <dune/common/fmatrix.hh>
 #include <dune/common/fvector.hh>
 #include <dune/grid/alugrid.hh>
+#include <dune/istl/bvector.hh>
+#include <dune/istl/bcrsmatrix.hh>
 
 #include <dune/fufem/functionspacebases/p1nodalbasis.hh>