diff --git a/storage-service/ocr/ffmpeg/FfmpegVideoSlicer.go b/storage-service/ocr/ffmpeg/FfmpegVideoSlicer.go
index 5844a23..6390775 100644
--- a/storage-service/ocr/ffmpeg/FfmpegVideoSlicer.go
+++ b/storage-service/ocr/ffmpeg/FfmpegVideoSlicer.go
@@ -80,7 +80,7 @@ func (f *VideoSlicerImpl) SliceVideoWithOverlap(
 			end = totalDuration
 		}
 
-		if (end - start) < overlap {
+		if (end-start) < overlap && start > 0 {
 			break
 		}