diff --git a/docs/_writing-tests/testharness-api.md b/docs/_writing-tests/testharness-api.md
index baa8772b814656..7f12132c25334f 100644
--- a/docs/_writing-tests/testharness-api.md
+++ b/docs/_writing-tests/testharness-api.md
@@ -258,11 +258,9 @@ wrapping everything in functions for isolation becomes
burdensome. For these cases `testharness.js` support "single page
tests".
-In order for a test to be interpreted as a single page test, then
-it must simply not call `test()` or `async_test()` anywhere on the page, and
-must call the `done()` function to indicate that the test is complete. All
-the `assert_*` functions are available as normal, but are called without
-the normal step function wrapper. For example:
+To write a single page test, call `single_test()`. Call the `done()` function to
+indicate that the test is complete. All the `assert_*` functions are available
+as normal, but are called without the normal step function wrapper. For example:
```html
@@ -271,12 +269,14 @@ the normal step function wrapper. For example:
+
```
-The test title for single page tests is always taken from `document.title`.
+The test title for single page tests is taken from `document.title` or from the
+argument to `single_test()`.
## Making assertions ##