diff --git a/test/test.sh b/test/test.sh
index b5bd308..ee74e75 100755
--- a/test/test.sh
+++ b/test/test.sh
@@ -114,6 +114,6 @@
         "cpp/TestServer" \
         "10"
 do_test "perl-cpp"  "binary" "buffered-ip" \
-        "perl -I perl/gen-perl/ perl/TestClient.pl" \
+        "perl -I perl/gen-perl/ -I../lib/perl/lib/ perl/TestClient.pl" \
         "cpp/TestServer" \
         "10"