diff --git a/src/test-harness/twtest.pl b/src/test-harness/twtest.pl
index 1d87e3b..815e9b1 100755
--- a/src/test-harness/twtest.pl
+++ b/src/test-harness/twtest.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 
 use strict;
-
+use lib '.';
 use twtools;
 
 my @twtests       = ();