diff --git a/README.md b/README.md
index 89afb2a..645f2f8 100644
--- a/README.md
+++ b/README.md
@@ -51,7 +51,7 @@ void run_tests(void (*)(TestState *));
 ```
 
 Its only argument is a pointer to a function which is then
-responsible for acuually running the tests.  A pointer to the newly
+responsible for actually running the tests.  A pointer to the newly
 created `TestState` value will be passed to this function.
 
 ## Simple Tests