diff --git a/doc/build-helpers/testers.chapter.md b/doc/build-helpers/testers.chapter.md
index 241acb439ea6..313004b0b454 100644
--- a/doc/build-helpers/testers.chapter.md
+++ b/doc/build-helpers/testers.chapter.md
@@ -41,9 +41,26 @@ If the `moduleNames` argument is omitted, `hasPkgConfigModules` will use `meta.p
 ## `hasCmakeConfigModules` {#tester-hasCmakeConfigModules}
 
 Checks whether a package exposes a given list of `*config.cmake` modules.
+If the `moduleNames` argument is omitted, `hasCmakeConfigModules` will use `meta.cmakeConfigModules`.
 Note the moduleNames used in cmake find_package are case sensitive.
 
-:::{.example #ex-hascmakeconfigmodules}
+:::{.example #ex-hascmakeconfigmodules-defaultvalues}
+
+# Check that `*config.cmake` modules are exposed using default values
+
+```nix
+{
+  passthru.tests.cmake-config = testers.hasCmakeConfigModules { package = finalAttrs.finalPackage; };
+
+  meta.cmakeConfigModules = [ "Foo" ];
+}
+```
+
+:::
+
+<!-- Old anchor name so links still work -->
+[]{#ex-hascmakeconfigmodules}
+:::{.example #ex-hascmakeconfigmodules-explicitmodules}
 
 # Check that `*config.cmake` modules are exposed using explicit module names
 
diff --git a/doc/redirects.json b/doc/redirects.json
index 6e62c5579315..f4f514e35de3 100644
--- a/doc/redirects.json
+++ b/doc/redirects.json
@@ -2252,6 +2252,12 @@
   "ex-hascmakeconfigmodules": [
     "index.html#ex-hascmakeconfigmodules"
   ],
+  "ex-hascmakeconfigmodules-defaultvalues": [
+    "index.html#ex-hascmakeconfigmodules-defaultvalues"
+  ],
+  "ex-hascmakeconfigmodules-explicitmodules": [
+    "index.html#ex-hascmakeconfigmodules-explicitmodules"
+  ],
   "tester-lycheeLinkCheck": [
     "index.html#tester-lycheeLinkCheck"
   ],