1 files changed, 1 insertions, 1 deletions
diff --git a/t/op/substr.t b/t/op/substr.t
index f2a0c6c4fe..891e9041a7 100755
--- a/t/op/substr.t
+++ b/t/op/substr.t
@@ -6,7 +6,7 @@ print "1..135\n";
 
 BEGIN {
     chdir 't' if -d 't';
-    unshift @INC, '../lib';
+    @INC = '../lib';
 }
 use warnings ;