diff --git a/docs/manual/contribute.adoc b/docs/manual/contribute.adoc
index 2b90d13b41..684e9f4809 100644
--- a/docs/manual/contribute.adoc
+++ b/docs/manual/contribute.adoc
@@ -369,7 +369,7 @@ $ git send-email origin/master
 ---------------------
 
 Note that +git+ should be configured to use your mail account.
-To configure +git+, see +man git-send-email+ or google it.
+To configure +git+, see +man git-send-email+ or https://git-send-email.io/.
 
 If you do not use +git send-email+, make sure posted *patches are not
 line-wrapped*, otherwise they cannot easily be applied. In such a case,