diff --git a/doc/HACKING b/doc/HACKING
index 39eafec204..3c1d0d9577 100644
--- a/doc/HACKING
+++ b/doc/HACKING
@@ -93,7 +93,7 @@ down bugs.
 Jenkins
 ~~~~~~~
 
-http://jenkins.torproject.org
+https://jenkins.torproject.org
 
 Dmalloc
 ~~~~~~~