1 files changed, 1 insertions, 1 deletions
diff --git a/contrib/perl5/t/lib/trig.t b/contrib/perl5/t/lib/trig.t
index 3114176ab0b8..20669f0bd97e 100755
--- a/contrib/perl5/t/lib/trig.t
+++ b/contrib/perl5/t/lib/trig.t
@@ -10,7 +10,7 @@
 
 BEGIN {
     chdir 't' if -d 't';
-    @INC = '../lib';
+    unshift @INC, '../lib';
 }
 
 use Math::Trig;