diff --git a/ch17/ex_33.cpp b/ch17/ex_33.cpp
index 99de0cc5..085ad43d 100644
--- a/ch17/ex_33.cpp
+++ b/ch17/ex_33.cpp
@@ -30,7 +30,7 @@ using std::time;
 using std::sort;
 using std::find_if;
 
-#inclide <utility>
+#include <utility>
 using std::pair;