diff --git a/include/wx/osx/private/available.h b/include/wx/osx/private/available.h
index 5ec95f5a06..dc61cccd38 100644
--- a/include/wx/osx/private/available.h
+++ b/include/wx/osx/private/available.h
@@ -11,7 +11,7 @@
 #define _WX_OSX_PRIVATE_AVAILABLE_H_
 
 // Xcode 9 adds new @available keyword and the corresponding __builtin_available
-// builtin which should be used instead of manually checks for API availability
+// builtin which should be used instead of manual checks for API availability
 // as using this builtin suppresses the compiler -Wunguarded-availability
 // warnings, so use it if possible for the implementation of our own macro.
 #if defined(__clang__) && __has_builtin(__builtin_available)