diff --git a/main.js b/main.js
index 0176155..97c7e9c 100644
--- a/main.js
+++ b/main.js
@@ -17,12 +17,11 @@ import { dirname }
 from 'path';
 import request from 'request';
 import FileType from 'file-type';
-import readChunk from 'read-chunk';
 
 
 // Load settings from config.json
 const __filename = fileURLToPath(import.meta.url);
-const __dirname = dirname(__filename);
+        const __dirname = dirname(__filename);
 let rawdata = fs.readFileSync(__dirname + '/config.json');
 let settings = JSON.parse(rawdata);
 console.log(__dirname + "/config.json loaded.");
@@ -130,26 +129,28 @@ function getAndUploadFile(url, callback) {
     logger.info("Downloading MMS media " + url);
     // download
     request({url, encoding: null}, (err, resp, buffer) => {
-        const buffer = readChunk.sync(buffer, 0, 4100);
-        var mimetype = (await FileType.fromBuffer(buffer)).mime;
-        // upload
-        logger.info("Uploading MMS media to Matrix " + url);
-        client.uploadContent(buffer, {
-            onlyContentUri: true,
-            rawResponse: false
-        }).then((res) => {
-            if (typeof callback == "function") {
-                callback(res, mimetype);
-                logger.info("Media URI: " + res);
-            }
-        }).catch((err) => {
-            if (typeof callback == "function") {
-                callback(false);
-            }
-            if (err.data.error == "Unknown room") {
-                return;
-            }
-            logger.error(err);
+        FileType.fromBuffer(buffer).then(function (mimeobj) {
+            logger.debug(mimeobj);
+            // upload
+            logger.info("Uploading MMS media to Matrix " + url);
+            client.uploadContent(buffer, {
+                onlyContentUri: true,
+                rawResponse: false,
+                type: mimeobj.mime
+            }).then((res) => {
+                if (typeof callback == "function") {
+                    callback(res, mimeobj.mime);
+                    logger.info("Media URI: " + res);
+                }
+            }).catch((err) => {
+                if (typeof callback == "function") {
+                    callback(false);
+                }
+                if (err.data.error == "Unknown room") {
+                    return;
+                }
+                logger.error(err);
+            });
         });
     });
 }