diff --git a/generator.go b/generator.go
index 2bb293b..65cb22b 100644
--- a/generator.go
+++ b/generator.go
@@ -137,7 +137,7 @@ func GetImage(buf *bytes.Buffer, path string, timestamp int, format string, scal
 }
 
 func GetVideoLength(path string) (float64, error) {
-	cmd := exec.Command("ffprobe", "-v", "quiet", "-select_streams", "v:0", "-show_entries", "stream=duration", "-of", "default=noprint_wrappers=1:nokey=1", path)
+	cmd := exec.Command("ffprobe", "-v", "quiet", "-show_entries", "format=duration", "-of", "default=noprint_wrappers=1:nokey=1", path)
 	buf := bytes.NewBuffer(nil)
 	cmd.Stdout = buf
 	err := cmd.Run()