diff --git a/.hooks/post-finish b/.hooks/post-finish
new file mode 100755
index 0000000..03c059a
--- /dev/null
+++ b/.hooks/post-finish
@@ -0,0 +1,4 @@
+#!/bin/bash
+
+echo "Upload $TUS_ID ($TUS_SIZE bytes) finished"
+cat /dev/stdin | jq .
diff --git a/.travis.yml b/.travis.yml
index 4236ace..13f0727 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,7 +17,7 @@ matrix:
   - go: tip
 
 install:
-- export PACKAGES=$(find ./ -maxdepth 1 -type d -not \( -name ".git" -or -name "cmd" -or -name "vendor" -or -name "data" \))
+- export PACKAGES=$(find ./ -maxdepth 1 -type d -not \( -name ".git" -or -name "cmd" -or -name "vendor" -or -name "data" -or -name ".hooks" \))
 - rsync -r ./vendor/ $GOPATH/src
 
 script:
diff --git a/cmd/tusd/main.go b/cmd/tusd/main.go
index b772061..ecf9c94 100644
--- a/cmd/tusd/main.go
+++ b/cmd/tusd/main.go
@@ -1,12 +1,17 @@
 package main
 
 import (
+	"bytes"
+	"encoding/json"
 	"flag"
 	"fmt"
 	"log"
 	"net"
 	"net/http"
 	"os"
+	"os/exec"
+	"path/filepath"
+	"strconv"
 	"time"
 
 	"github.com/tus/tusd"
@@ -33,11 +38,14 @@ var storeSize int64
 var basepath string
 var timeout int64
 var s3Bucket string
+var hooksDir string
 var version bool
 
 var stdout = log.New(os.Stdout, "[tusd] ", 0)
 var stderr = log.New(os.Stderr, "[tusd] ", 0)
 
+var hookInstalled bool
+
 func init() {
 	flag.StringVar(&httpHost, "host", "0.0.0.0", "Host to bind HTTP server to")
 	flag.StringVar(&httpPort, "port", "1080", "Port to bind HTTP server to")
@@ -47,9 +55,17 @@ func init() {
 	flag.StringVar(&basepath, "base-path", "/files/", "Basepath of the HTTP server")
 	flag.Int64Var(&timeout, "timeout", 30*1000, "Read timeout for connections in milliseconds")
 	flag.StringVar(&s3Bucket, "s3-bucket", "", "Use AWS S3 with this bucket as storage backend (requires the AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY and AWS_REGION environment variables to be set)")
+	flag.StringVar(&hooksDir, "hooks-dir", "", "")
 	flag.BoolVar(&version, "version", false, "Print tusd version information")
 
 	flag.Parse()
+
+	if hooksDir != "" {
+		hooksDir, _ = filepath.Abs(hooksDir)
+		hookInstalled = true
+
+		stdout.Printf("Using '%s' for hooks", hooksDir)
+	}
 }
 
 func main() {
@@ -112,7 +128,7 @@ func main() {
 		for {
 			select {
 			case info := <-handler.CompleteUploads:
-				stdout.Printf("Upload %s (%d bytes) finished\n", info.ID, info.Size)
+				invokeHook(info)
 			}
 		}
 	}()
@@ -130,6 +146,41 @@ func main() {
 	}
 }
 
+func invokeHook(info tusd.FileInfo) {
+	stdout.Printf("Upload %s (%d bytes) finished\n", info.ID, info.Size)
+
+	if !hookInstalled {
+		return
+	}
+
+	stdout.Println("Invoking hooks…")
+
+	cmd := exec.Command(hooksDir + "/post-finish")
+	env := os.Environ()
+	env = append(env, "TUS_ID="+info.ID)
+	env = append(env, "TUS_SIZE="+strconv.FormatInt(info.Size, 10))
+
+	jsonInfo, err := json.Marshal(info)
+	if err != nil {
+		stderr.Printf("Error encoding JSON for hook: %s", err)
+	}
+
+	reader := bytes.NewReader(jsonInfo)
+	cmd.Stdin = reader
+
+	cmd.Env = env
+	cmd.Dir = hooksDir
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+
+	go func() {
+		err := cmd.Run()
+		if err != nil {
+			stderr.Printf("Error running postfinish hook for %s: %s", info.ID, err)
+		}
+	}()
+}
+
 // Listener wraps a net.Listener, and gives a place to store the timeout
 // parameters. On Accept, it will wrap the net.Conn with our own Conn for us.
 // Original implementation taken from https://gist.github.com/jbardin/9663312
diff --git a/unrouted_handler.go b/unrouted_handler.go
index ef1fc17..a0ce31e 100644
--- a/unrouted_handler.go
+++ b/unrouted_handler.go
@@ -376,7 +376,7 @@ func (handler *UnroutedHandler) PatchFile(w http.ResponseWriter, r *http.Request
 
 		// ... send the info out to the channel
 		if handler.config.NotifyCompleteUploads {
-			info.Size = newOffset
+			info.Offset = newOffset
 			handler.CompleteUploads <- info
 		}
 	}