diff --git a/doc/config-examples/svn-server.nix b/doc/config-examples/svn-server.nix
index 7f2dafe16ad..a3c3b46cf24 100644
--- a/doc/config-examples/svn-server.nix
+++ b/doc/config-examples/svn-server.nix
@@ -17,6 +17,7 @@
 
     httpd = {
       enable = true;
+      experimental = true;
       adminAddr = "admin@example.org";
 
       subservices = {
diff --git a/test/test-config-examples.sh b/test/test-config-examples.sh
new file mode 100755
index 00000000000..1ba2f841c41
--- /dev/null
+++ b/test/test-config-examples.sh
@@ -0,0 +1,14 @@
+#!/bin/sh
+
+# This script try to evaluate all configurations which are stored in
+# doc/config-examples.  This script is useful to ensure that examples are
+# working with the current system.
+
+pwd=$(pwd)
+set -xe
+for i in ../doc/config-examples/*.nix; do
+  NIXOS_CONFIG="$pwd/$i" nix-instantiate \
+      --eval-only --xml --strict > /dev/null 2>&1 \
+      ../default.nix -A system
+done
+set +xe