diff --git a/cmd/mtredisalize/changetracker.go b/cmd/mtredisalize/changetracker.go
index adf5c2c..3b0af4d 100644
--- a/cmd/mtredisalize/changetracker.go
+++ b/cmd/mtredisalize/changetracker.go
@@ -3,8 +3,11 @@ package main
 import (
 	"encoding/json"
 	"log"
+	"net/http"
 	"sync"
 
+	"bytes"
+
 	"bitbucket.org/s_l_teichmann/mtredisalize/common"
 )
 
@@ -54,8 +57,11 @@ func (ct *ChangeTracker) FlushChanges(url string) (err error) {
 			log.Printf("WARN: encode changes to JSON failed: %s", err)
 			return
 		}
-		// TODO: implement http POST
-		_ = encoded
+		var buf bytes.Buffer
+		buf.Write(encoded)
+		if _, err = http.Post(url, "application/json", &buf); err != nil {
+			log.Printf("WARN: posting changes to %s failed: %s", url, err)
+		}
 	}()
 	return
 }