diff --git a/lecture/mm/henryproblem/henry2p/henry2p.cc b/lecture/mm/henryproblem/henry2p/henry2p.cc
index 050d33f78fcdc56bb19387735a26c1705165df5e..329a7a6b5d6edec736bcbecbc58ece1fb3c86122 100644
--- a/lecture/mm/henryproblem/henry2p/henry2p.cc
+++ b/lecture/mm/henryproblem/henry2p/henry2p.cc
@@ -37,7 +37,7 @@
 #include <dumux/common/defaultusagemessage.hh>
 
 #include <dumux/linear/linearsolvertraits.hh>
-#include <dumux/linear/seqsolverbackend.hh>
+#include <dumux/linear/amgbackend.hh>
 #include <dumux/nonlinear/newtonsolver.hh>
 
 #include <dumux/assembly/fvassembler.hh>