1 files changed, 1 insertions, 1 deletions
diff --git a/t/lib/io_poll.t b/t/lib/io_poll.t
index 925830e09d..d391566a7f 100755
--- a/t/lib/io_poll.t
+++ b/t/lib/io_poll.t
@@ -3,7 +3,7 @@
 BEGIN {
     unless(grep /blib/, @INC) {
         chdir 't' if -d 't';
-        unshift @INC, '../lib' if -d '../lib';
+        @INC = '../lib';
     }
 }