diff --git a/TTS/tts/datasets/formatters.py b/TTS/tts/datasets/formatters.py
index 3cb37168..db7841f4 100644
--- a/TTS/tts/datasets/formatters.py
+++ b/TTS/tts/datasets/formatters.py
@@ -112,7 +112,6 @@ def ljspeech_test(root_path, meta_file):
     https://keithito.com/LJ-Speech-Dataset/"""
     txt_file = os.path.join(root_path, meta_file)
     items = []
-    speaker_name = "ljspeech"
     with open(txt_file, "r", encoding="utf-8") as ttf:
         for idx, line in enumerate(ttf):
             cols = line.split("|")
diff --git a/tests/vocoder_tests/test_melgan_train.py b/tests/vocoder_tests/test_melgan_train.py
index 3ff65b5a..551b786a 100644
--- a/tests/vocoder_tests/test_melgan_train.py
+++ b/tests/vocoder_tests/test_melgan_train.py
@@ -19,7 +19,7 @@ config = MelganConfig(
     seq_len=2048,
     eval_split_size=1,
     print_step=1,
-    discriminator_model_params={"base_channels": 16, "max_channels": 256, "downsample_factors": [4, 4, 4]},
+    discriminator_model_params={"base_channels": 16, "max_channels": 64, "downsample_factors": [4, 4, 4]},
     print_eval=True,
     data_path="tests/data/ljspeech",
     output_path=output_path,