diff --git a/tparse/tparse.h b/tparse/tparse.h
index 6b13f582..b541492b 100644
--- a/tparse/tparse.h
+++ b/tparse/tparse.h
@@ -30,7 +30,7 @@
 #include <memory>     /* for auto_ptr */
 #include <algorithm>  /* for iterator */
 #include <exception>  /* for exception */
-#include <iostream>   /* for istream */
+#include <istream>    /* for istream */
 #include <list>       /* for list<> */
 #include <string>     /* for string */