diff --git a/t/tag.t b/t/tag.t
index bd15c4e73..5b0d9c824 100755
--- a/t/tag.t
+++ b/t/tag.t
@@ -3,7 +3,7 @@ package IkiWiki;
 
 use warnings;
 use strict;
-use Test::More tests => 21;
+use Test::More tests => 22;
 
 BEGIN { use_ok("IkiWiki"); }
 BEGIN { use_ok("IkiWiki::Render"); }
@@ -79,4 +79,8 @@ IkiWiki::gen_autofile("tags/primes.mdwn", \%pages, \@del);
 is_deeply(\%pages, {});
 is_deeply(\@del, ['tags/primes.mdwn']);
 
+
+# cleanup
+ok(! system("rm -rf t/tmp"));
+
 1;