diff --git a/9unit.h b/9unit.h
index 90c38e9..9be3a0c 100644
--- a/9unit.h
+++ b/9unit.h
@@ -61,7 +61,7 @@ extern void run_test(
 
 // Runs multiple tests, displaying a summary at the end
 extern void run_tests(
-    // runs the tests and updates a provided TestState
+	// runs the tests and updates a provided TestState
 	void (*)(TestState *)
 );