1 files changed, 2 insertions, 2 deletions
diff --git a/src/filters/muxer/MatroskaMuxer/MatroskaMuxer.h b/src/filters/muxer/MatroskaMuxer/MatroskaMuxer.h
index 245758b3b..82d9e4fd3 100644
--- a/src/filters/muxer/MatroskaMuxer/MatroskaMuxer.h
+++ b/src/filters/muxer/MatroskaMuxer/MatroskaMuxer.h
@@ -1,6 +1,6 @@
 /*
  * (C) 2003-2006 Gabest
- * (C) 2006-2012 see Authors.txt
+ * (C) 2006-2013 see Authors.txt
  *
  * This file is part of MPC-HC.
  *
@@ -88,7 +88,7 @@ public:
 interface __declspec(uuid("38E2D43D-915D-493C-B373-888DB16EE3DC"))
 IMatroskaMuxer :
 public IUnknown {
-    STDMETHOD(CorrectTimeOffset)(bool fNegative, bool fPositive) = 0;
+    STDMETHOD(CorrectTimeOffset)(bool fNegative, bool fPositive) PURE;
     // TODO: chapters
 };