diff --git a/9unit.h b/9unit.h
index 22ff7fc..223abf4 100644
--- a/9unit.h
+++ b/9unit.h
@@ -44,7 +44,7 @@ extern void runTest(
 	TestResult (*)(void) // the test to run
 );
 
-// Runs multiple tests
+// Runs multiple tests, displaying a summary at the end
 extern void runTests(
     // function that runs the tests and updates the provided TestState
 	void (*)(TestState *)