diff --git a/configure.ac b/configure.ac
index 187bcf4e633d9550af58967c3e8785333c52c295..332690b9bc7ac4cfabf8e6b4aca2a2e825227cda 100644
--- a/configure.ac
+++ b/configure.ac
@@ -41,7 +41,6 @@ AC_CONFIG_FILES([
   dune/fem-dg/test/euler/Makefile
   dune/fem-dg/test/poisson/Makefile
   dune/fem-dg/test/navierstokes/Makefile
-  dune/fem-dg/test/poisson/Makefile
   dune/fem-dg/assemble/Makefile
   dune-fem-dg.pc
 ])