diff --git a/configure.ac b/configure.ac
index d7749811dbc087de3243b8f93f1a542c3f1a4bee..e320763a808937f3a055d7a71c205279107ae431 100644
--- a/configure.ac
+++ b/configure.ac
@@ -21,6 +21,7 @@ AC_CONFIG_FILES([Makefile
                  dune/elasticity/assemblers/Makefile
                  dune/elasticity/common/Makefile
                  dune/elasticity/estimators/Makefile
+                 dune/elasticity/materials/Makefile
                  test/Makefile
                  m4/Makefile
                  elasticity.pc])