diff --git a/bootstrap.conf b/bootstrap.conf
index d8d2cde6..bbbb4ebc 100644
--- a/bootstrap.conf
+++ b/bootstrap.conf
@@ -17,6 +17,8 @@
 # along with this program.  If not, see `https://www.gnu.org/licenses/'.
 
 # gnulib library name
+source_base=lib
+tests_base=lib/tests
 gnulib_name=libgnu
 gnulib_tool_option_extras="--makefile-name=gnulib.mk"
 use_libtool=0