diff --git a/m4/opm_superlu.m4 b/m4/opm_superlu.m4
index bc6c71df..90d4aec4 100644
--- a/m4/opm_superlu.m4
+++ b/m4/opm_superlu.m4
@@ -153,7 +153,7 @@ AC_DEFUN([DUNE_PATH_SUPERLU],[
         [dnl
             if test x"$withval" != xno ; then
                 # get absolute path
-                with_superlu=`eval cd $withval 2>&1 && pwd`
+                with_superlu=`eval cd $withval > /dev/null 2>&1 && pwd`
                 if test x"$withval" = xyes; then
                     # Search in default locations
                     _slu_search_default