diff --git a/tests/vocoder_tests/test_fullband_melgan_train.py b/tests/vocoder_tests/test_fullband_melgan_train.py
index d9bc51ac..2b286b91 100644
--- a/tests/vocoder_tests/test_fullband_melgan_train.py
+++ b/tests/vocoder_tests/test_fullband_melgan_train.py
@@ -20,6 +20,7 @@ config = FullbandMelganConfig(
     eval_split_size=1,
     print_step=1,
     print_eval=True,
+    discriminator_model_params={"base_channels": 16, "max_channels": 256, "downsample_factors": [4, 4, 4]},
     data_path="tests/data/ljspeech",
     output_path=output_path,
 )