diff --git a/texthook/engine/engine.cc b/texthook/engine/engine.cc
index 2b8cf29..6bf7671 100644
--- a/texthook/engine/engine.cc
+++ b/texthook/engine/engine.cc
@@ -27,7 +27,6 @@
 //#include <boost/foreach.hpp>
 #include <cstdio>
 #include <string>
-#include <sstream>
 
 // jichi 375/2014: Add offset of pusha/pushad
 // http://faydoc.tripod.com/cpu/pushad.htm