diff --git a/format.h b/format.h
index 291506bf..4d51f0c9 100644
--- a/format.h
+++ b/format.h
@@ -967,7 +967,7 @@ struct Conditional { typedef T type; };
 template<class T, class F>
 struct Conditional<false, T, F> { typedef F type; };
 
-// For bcc32 which doesn't understand ! in template argumetns.
+// For bcc32 which doesn't understand ! in template arguments.
 template<bool>
 struct Not { enum { value = 0 }; };