diff --git a/taglib/ogg/opus/opusfile.cpp b/taglib/ogg/opus/opusfile.cpp
index ca1a3873..43c102d0 100644
--- a/taglib/ogg/opus/opusfile.cpp
+++ b/taglib/ogg/opus/opusfile.cpp
@@ -27,8 +27,6 @@
  *   http://www.mozilla.org/MPL/                                           *
  ***************************************************************************/
 
-#include <bitset>
-
 #include <tstring.h>
 #include <tdebug.h>
 #include <tpropertymap.h>