diff --git a/configure.ac b/configure.ac
index 4852d4af0..9785389d6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -14,7 +14,7 @@ AC_CONFIG_MACRO_DIR([m4])
 AC_CANONICAL_TARGET
 AC_USE_SYSTEM_EXTENSIONS
 
-AM_INIT_AUTOMAKE([-Wall -Werror -Wno-portability foreign tar-ustar subdir-objects])
+AM_INIT_AUTOMAKE([-Wall -Werror -Wno-portability foreign tar-ustar subdir-objects serial-tests])
 
 AC_CANONICAL_HOST
 AC_CANONICAL_BUILD