diff --git a/doc/manual/installation.xml b/doc/manual/installation.xml
index 3ede881d4..9d1a7e755 100644
--- a/doc/manual/installation.xml
+++ b/doc/manual/installation.xml
@@ -48,7 +48,7 @@ Debian, Ubuntu, Mac OS X and various other systems from the Nix homepage.
You can also get builds of the latest development release from our
continuous
+xlink:href="http://hydra.nixos.org/job/nix/trunk/release/latest-finished#tabs-constituents">continuous
build system.
For Fedora, RPM packages are available. These can be installed
@@ -188,7 +188,7 @@ a source distribution.
downloaded from the Nix homepage.
You can also grab the most
+xlink:href="http://hydra.nixos.org/job/nix/trunk/release/latest-finished#tabs-constituents">most
recent development release.
Alternatively, the most recent sources of Nix can be obtained
diff --git a/doc/manual/writing-nix-expressions.xml b/doc/manual/writing-nix-expressions.xml
index f7133345a..5ba3df56c 100644
--- a/doc/manual/writing-nix-expressions.xml
+++ b/doc/manual/writing-nix-expressions.xml
@@ -15,7 +15,7 @@ on to a more in-depth look at the Nix expression language.
For more extensive information on adding packages to the Nix Packages
collection (such as functions in the standard environment and coding
conventions), please consult its
+xlink:href="http://nixos.org/nixpkgs/manual/">its
manual.