diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 77d3280dc6781..f4ffad76e8b1f 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -532,7 +532,7 @@ config SMP
 	  will run faster if you say N here.
 
 	  See also the SMP-HOWTO available at
-	  <http://www.tldp.org/docs.html#howto>.
+	  <https://www.tldp.org/docs.html#howto>.
 
 	  If you don't know what to do here, say N.