diff --git a/aegisub/src/subtitle_format_srt.cpp b/aegisub/src/subtitle_format_srt.cpp
index ff6d446c0..4d20343b5 100644
--- a/aegisub/src/subtitle_format_srt.cpp
+++ b/aegisub/src/subtitle_format_srt.cpp
@@ -360,7 +360,7 @@ void SRTSubtitleFormat::ReadFile(AssFile *target, agi::fs::path const& filename,
 	// See parsing algorithm at <http://devel.aegisub.org/wiki/SubtitleFormats/SRT>
 
 	// "hh:mm:ss,fff --> hh:mm:ss,fff" (e.g. "00:00:04,070 --> 00:00:10,04")
-	const boost::regex timestamp_regex("^([0-9]{2}:[0-9]{2}:[0-9]{2},[0-9]{1,}) --> ([0-9]{2}:[0-9]{2}:[0-9]{2},[0-9]{1,})");
+	const boost::regex timestamp_regex("^([0-9]{1,2}:[0-9]{1,2}:[0-9]{1,2},[0-9]{1,}) --> ([0-9]{1,2}:[0-9]{1,2}:[0-9]{1,2},[0-9]{1,})");
 
 	SrtTagParser tag_parser;