diff --git a/README.md b/README.md
index dae0712..242bf33 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 Simple program to split video file into clips of requested length
 
 ```
-go run . --filename 'Family Guy - S01E01 - Death Has a Shadow SDTV.mkv' --clip_length 5
+go run . --filename 'Family Guy - S01E01 - Death Has a Shadow SDTV.mkv' --clip_length 5s
 ```
 
 # Dependencies
diff --git a/main.go b/main.go
index 0e8912e..1990b46 100644
--- a/main.go
+++ b/main.go
@@ -9,6 +9,7 @@ import (
 	"path/filepath"
 	"strconv"
 	"strings"
+	"time"
 )
 
 func GetVideoLength(ffprobeLocation string, fileName string) (seconds int, err error) {
@@ -34,12 +35,24 @@ func ProcessFileName(filename string) string {
 }
 func main() {
 	filename := flag.String("filename", "", "video to make clips of")
-	clip_length := flag.Int("clip_length", 2, "how many seconds long each clip should be")
+	raw_clip_length := flag.String("clip_length", "2s", "how many seconds long each clip should be")
 	clips_folder := flag.String("clips_folder", "clips", "folder to store clips in")
 	ffmpegLocation := flag.String("ffmpeg", "ffmpeg", "specify ffmpeg location if its not in path")
 	ffprobeLocation := flag.String("ffprobe", "ffprobe", "specify ffprobe location if its not in path")
+
 	flag.Parse()
 
+	clip_lenght_f, err := time.ParseDuration(*raw_clip_length)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	clip_length := int(clip_lenght_f.Seconds())
+
+	if clip_length < 1 {
+		log.Fatal("Please choose length longer than a second")
+	}
+
 	if *filename == "" {
 		log.Fatalln("Please insert video to make clips of")
 	}
@@ -54,9 +67,9 @@ func main() {
 		log.Fatal(err)
 	}
 
-	for start := 0; start <= length; start += *clip_length {
-		fmt.Printf("Creating clip for seconds %d to %d\n", start, start+*clip_length)
-		out, err := exec.Command("/bin/sh", "-c", fmt.Sprintf("%s -ss %d -i \"%s\" -c copy -t %d \"%s/%s seconds %d to %d.mp4\"", *ffmpegLocation, start, *filename, clip_length, *clips_folder, ProcessFileName(*filename), start, start+*clip_length)).CombinedOutput()
+	for start := 0; start <= length; start += clip_length {
+		fmt.Printf("Creating clip for seconds %d to %d\n", start, start+clip_length)
+		out, err := exec.Command("/bin/sh", "-c", fmt.Sprintf("%s -ss %d -i \"%s\" -c copy -t %d \"%s/%s seconds %d to %d.mp4\"", *ffmpegLocation, start, *filename, clip_length, *clips_folder, ProcessFileName(*filename), start, start+clip_length)).CombinedOutput()
 		if err != nil {
 			fmt.Print(string(out))
 			log.Fatal(err)