diff --git a/configure.ac b/configure.ac
index 66064d2916f9951ea5a154ac4566e5fef4068fba..4163414819ad38bd6d014bfb827c3897a6cd9bd4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -23,9 +23,6 @@ AC_CONFIG_FILES([Makefile
                  dune/contact/Makefile
                  dune/contact/assemblers/Makefile
                  dune/contact/common/Makefile
-                 dune/contact/common/dual/Makefile
-                 dune/contact/common/dual/dualp1/Makefile
-                 dune/contact/common/dual/dualq1/Makefile
                  dune/contact/estimators/Makefile
                  dune/contact/projections/Makefile
                  dune/contact/solvers/Makefile