diff --git a/bootstrap.sh b/bootstrap.sh
index 412550f..50b75b7 100755
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -1,13 +1,15 @@
 #!/bin/sh
 
-AUTOCONF_FILES="Makefile.in aclocal.m4 ar-lib autom4te.cache compile config.* \
-        configure depcomp install-sh ltmain.sh missing *libtool"
+AUTOCONF_FILES="Makefile.in aclocal.m4 ar-lib autom4te.cache compile \
+        config.guess config.h.in config.sub configure depcomp install-sh \
+        ltmain.sh missing *libtool test-driver"
 
 case $1 in
     clean)
         test -f Makefile && make maintainer-clean
-        rm -rf ${AUTOCONF_FILES}
-
+        for file in ${AUTOCONF_FILES}; do
+            find -name "$file" | xargs -r rm -rf
+        done
         exit 0
         ;;
 esac