diff --git a/libs/type_index/doc/type_index.qbk b/libs/type_index/doc/type_index.qbk
index 42cedfa..8e4afb3 100644
--- a/libs/type_index/doc/type_index.qbk
+++ b/libs/type_index/doc/type_index.qbk
@@ -11,7 +11,7 @@
 ]
 
 [section Motivation]
-Sometimes getting and storing information about a template type at runtime is required. For such cases a construction like `&typeid(T)` or C++11 class `std::type_index` is usually used. And that is the point, where problems strat:
+Sometimes getting and storing information about a template type at runtime is required. For such cases a construction like `&typeid(T)` or C++11 class `std::type_index` is usually used. And that is the point, where problems start:
 
 * `typeid(T)` and `std::type_index` require Run Time Type Info (RTTI)
 * some implementations of `typeid(T)` strip const, volatile and references from type, while others don't