diff --git a/documentation/ref-manual/migration.xml b/documentation/ref-manual/migration.xml
index a8701a52d7..21763e3a46 100644
--- a/documentation/ref-manual/migration.xml
+++ b/documentation/ref-manual/migration.xml
@@ -2343,8 +2343,10 @@
         </para>
 
         <para>
-            For further details, please see
-            <ulink url='https://gcc.gnu.org/gcc-5/changes.html'></ulink>.
+            For further details, see
+            <ulink url='https://gcc.gnu.org/gcc-5/changes.html'></ulink> and
+            the porting guide at
+            <ulink url='https://gcc.gnu.org/gcc-5/porting_to.html'></ulink>.
         </para>
 
         <para>