diff --git a/doc/overview.qbk b/doc/overview.qbk
index 8e8dcbe..edc0b9d 100644
--- a/doc/overview.qbk
+++ b/doc/overview.qbk
@@ -33,7 +33,7 @@ All functions and classes are contained in the namespace __coro_ns__.
 
 [note This library requires C++11!]
 
-[important Windows: turn off global program optimization (/GL) and change /EHsc (compiler
+[important Windows using fcontext_t: turn off global program optimization (/GL) and change /EHsc (compiler
 assumes that functions declared as extern "C" never throw a C++ exception) to /EHs (tells
 compiler assumes that functions declared as extern "C" may throw an exception).]