diff --git a/plugins/omemo/src/file_transfer/file_decryptor.vala b/plugins/omemo/src/file_transfer/file_decryptor.vala
index d60ecdc8..3999d3b8 100644
--- a/plugins/omemo/src/file_transfer/file_decryptor.vala
+++ b/plugins/omemo/src/file_transfer/file_decryptor.vala
@@ -63,7 +63,7 @@ public class OmemoFileDecryptor : FileDecryptor, Object {
             SymmetricCipher cipher = new SymmetricCipher("AES-GCM");
             cipher.set_key(key);
             cipher.set_iv(iv);
-            return new ConverterInputStream(encrypted_stream, new SymmetricCipherDecrypter((owned) cipher));
+            return new ConverterInputStream(encrypted_stream, new SymmetricCipherDecrypter((owned) cipher, 16));
 
         } catch (Crypto.Error e) {
             throw new FileReceiveError.DECRYPTION_FAILED("OMEMO file decryption error: %s".printf(e.message));
diff --git a/plugins/omemo/src/file_transfer/file_encryptor.vala b/plugins/omemo/src/file_transfer/file_encryptor.vala
index d7c38736..31c3ad6c 100644
--- a/plugins/omemo/src/file_transfer/file_encryptor.vala
+++ b/plugins/omemo/src/file_transfer/file_encryptor.vala
@@ -37,7 +37,7 @@ public class OmemoFileEncryptor : Dino.FileEncryptor, Object {
             omemo_http_file_meta.key = key;
             omemo_http_file_meta.size = file_transfer.size + 16;
             omemo_http_file_meta.mime_type = "omemo";
-            file_transfer.input_stream = new ConverterInputStream(file_transfer.input_stream, new SymmetricCipherEncrypter((owned) cipher));
+            file_transfer.input_stream = new ConverterInputStream(file_transfer.input_stream, new SymmetricCipherEncrypter((owned) cipher, 16));
         } catch (Crypto.Error error) {
             throw new FileSendError.ENCRYPTION_FAILED("OMEMO file encryption error: %s".printf(error.message));
         } catch (GLib.Error error) {