X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Fmono_picture_asset_reader.h;h=4caf80f96e7427a4bf413abf02b424cb5af1b109;hb=9f75a44df591954519ac828a1b50b6d5ebd2a3a1;hp=9ec899ccd2947a6810f22d8bdb01416286b4c60a;hpb=f9474637db140eb3d9170185fc79437c8d9914b7;p=libdcp.git

diff --git a/src/mono_picture_asset_reader.h b/src/mono_picture_asset_reader.h
index 9ec899cc..4caf80f9 100644
--- a/src/mono_picture_asset_reader.h
+++ b/src/mono_picture_asset_reader.h
@@ -31,12 +31,16 @@
     files in the program, then also delete it here.
 */
 
+#ifndef LIBDCP_MONO_PICTURE_ASSET_READER_H
+#define LIBDCP_MONO_PICTURE_ASSET_READER_H
+
 #include "asset_reader.h"
+#include "mono_picture_frame.h"
 
 namespace dcp {
 
-class MonoPictureFrame;
-
 typedef AssetReader<ASDCP::JP2K::MXFReader, MonoPictureFrame> MonoPictureAssetReader;
 
 }
+
+#endif