diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index d0ea82ee822..1da3a365cf2 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,5 +1,9 @@
 2017-01-22  Gerald Pfeifer  <gerald@pfeifer.com>
 
+	* doc/xml/manual/debug.xml: code.google.com uses https now.
+
+2017-01-22  Gerald Pfeifer  <gerald@pfeifer.com>
+	
 	* doc/xml/manual/test.xml: Fix link into gccint online manual.
 
 2017-01-21  Ville Voutilainen  <ville.voutilainen@gmail.com>
diff --git a/libstdc++-v3/doc/xml/manual/debug.xml b/libstdc++-v3/doc/xml/manual/debug.xml
index 923f6ab8613..1e64a86c7b7 100644
--- a/libstdc++-v3/doc/xml/manual/debug.xml
+++ b/libstdc++-v3/doc/xml/manual/debug.xml
@@ -234,7 +234,7 @@
   xlink:href="http://valgrind.org/docs/manual/hg-manual.html"> 
   Helgrind</link>, and
   <link xmlns:xlink="http://www.w3.org/1999/xlink" 
-  xlink:href="http://code.google.com/p/data-race-test/"> 
+  xlink:href="https://code.google.com/p/data-race-test/"> 
   ThreadSanitizer</link> (this refers to ThreadSanitizer v1, not the
   new "tsan" feature built-in to GCC itself).
 </para>