Fix error.

1 files changed, 4 insertions, 1 deletions

diff --git a/src/smpte_subtitle_asset.cc b/src/smpte_subtitle_asset.cc
index 128729d8..3b30a0c7 100644
--- a/src/smpte_subtitle_asset.cc
+++ b/src/smpte_subtitle_asset.cc
@@ -103,7 +103,10 @@ SMPTESubtitleAsset::SMPTESubtitleAsset (boost::filesystem::path file)
 		} catch (cxml::Error& e) {
 			boost::throw_exception (
 				DCPReadError (
-					String::compose ("MXF failed with %1, XML failed with %2", file, static_cast<int> (r), e.what ())
+					String::compose (
+						"Failed to read subtitle file %1; MXF failed with %2, XML failed with %3",
+						file, static_cast<int> (r), e.what ()
+						)
 					)
 				);
 		}