2 files changed, 10 insertions, 1 deletions
diff --git a/src/exceptions.h b/src/exceptions.h
index 1895f11..e0d0e90 100644
--- a/src/exceptions.h
+++ b/src/exceptions.h
@@ -90,6 +90,15 @@ private:
 };
 
 
+class WebVTTHeaderError : public WebVTTError
+{
+public:
+	WebVTTHeaderError()
+		: WebVTTError("No WEBVTT header found")
+	{}
+};
+
+
 class SSAError : public std::runtime_error
 {
 public:
diff --git a/src/web_vtt_reader.cc b/src/web_vtt_reader.cc
index cd6844d..4618466 100644
--- a/src/web_vtt_reader.cc
+++ b/src/web_vtt_reader.cc
@@ -86,7 +86,7 @@ WebVTTReader::read(std::function<optional<string> ()> get_line)
 		switch (state) {
 		case State::HEADER:
 			if (!boost::starts_with(*line, "WEBVTT")) {
-				throw WebVTTError("No WEBVTT header found");
+				throw WebVTTHeaderError();
 			}
 			state = State::DATA;
 			break;