diff --git a/frontend/src/fileReceiver.js b/frontend/src/fileReceiver.js
index 274b0328..5e363140 100644
--- a/frontend/src/fileReceiver.js
+++ b/frontend/src/fileReceiver.js
@@ -68,7 +68,8 @@ class FileReceiver extends EventEmitter {
           {
             name: 'AES-GCM',
             iv: hexToArray(fdata.iv),
-            additionalData: hexToArray(fdata.aad)
+            additionalData: hexToArray(fdata.aad),
+            tagLength: 128
           },
           key,
           fdata.data
diff --git a/frontend/src/fileSender.js b/frontend/src/fileSender.js
index cbcbd76d..132b868c 100644
--- a/frontend/src/fileSender.js
+++ b/frontend/src/fileSender.js
@@ -65,7 +65,8 @@ class FileSender extends EventEmitter {
               {
                 name: 'AES-GCM',
                 iv: this.iv,
-                additionalData: this.aad
+                additionalData: this.aad,
+                tagLength: 128
               },
               secretKey,
               plaintext