diff --git a/taglib/toolkit/tbytevector.h b/taglib/toolkit/tbytevector.h
index 66a424ea..16d42e64 100644
--- a/taglib/toolkit/tbytevector.h
+++ b/taglib/toolkit/tbytevector.h
@@ -30,7 +30,7 @@
 #include "taglib_export.h"
 
 #include <vector>
-#include <ostream>
+#include <iostream>
 
 namespace TagLib {
 
diff --git a/taglib/toolkit/tstring.h b/taglib/toolkit/tstring.h
index cd0474e2..9289f7da 100644
--- a/taglib/toolkit/tstring.h
+++ b/taglib/toolkit/tstring.h
@@ -31,7 +31,7 @@
 #include "tbytevector.h"
 
 #include <string>
-#include <ostream>
+#include <iostream>
 
 /*!
  * \relates TagLib::String