diff --git a/configure.ac b/configure.ac
index fdb49efc9..7a51b03b4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3725,6 +3725,8 @@ AC_CONFIG_FILES([Makefile \
            lib/Makefile \
            lib/libcurl.vers \
            tests/Makefile \
+           tests/certs/Makefile \
+           tests/certs/scripts/Makefile \
            tests/data/Makefile \
            tests/server/Makefile \
            tests/libtest/Makefile \
diff --git a/tests/certs/Makefile.am b/tests/certs/Makefile.am
index ef4626889..cd35bdff2 100644
--- a/tests/certs/Makefile.am
+++ b/tests/certs/Makefile.am
@@ -19,6 +19,7 @@
 # KIND, either express or implied.
 #
 ###########################################################################
+AUTOMAKE_OPTIONS = foreign
 
 SUBDIRS = scripts
 
diff --git a/tests/certs/scripts/Makefile.am b/tests/certs/scripts/Makefile.am
index ff6983caa..ffc1449b7 100644
--- a/tests/certs/scripts/Makefile.am
+++ b/tests/certs/scripts/Makefile.am
@@ -19,6 +19,7 @@
 # KIND, either express or implied.
 #
 ###########################################################################
+AUTOMAKE_OPTIONS = foreign
 
 SCRIPTFILES = \
   genroot.sh \