diff --git a/TTS/tts/utils/generic_utils.py b/TTS/tts/utils/generic_utils.py
index 6358e5a9..095ddc07 100644
--- a/TTS/tts/utils/generic_utils.py
+++ b/TTS/tts/utils/generic_utils.py
@@ -140,10 +140,10 @@ def check_config(c):
     check_argument('do_trim_silence', c['audio'], restricted=True, val_type=bool)
     check_argument('trim_db', c['audio'], restricted=True, val_type=int)
 
-    # storage parameters
-    check_argument('sample_from_storage_p', c['storage'], restricted=True, val_type=float, min_val=0.0, max_val=1.0)
-    check_argument('storage_size', c['storage'], restricted=True, val_type=int, min_val=1, max_val=100)
-    check_argument('additive_noise', c['storage'], restricted=True, val_type=float, min_val=0.0, max_val=1.0)
+    # storage parameters (only for speaker encoder)
+    check_argument('sample_from_storage_p', c['storage'], restricted=False, val_type=float, min_val=0.0, max_val=1.0)
+    check_argument('storage_size', c['storage'], restricted=False, val_type=int, min_val=1, max_val=100)
+    check_argument('additive_noise', c['storage'], restricted=False, val_type=float, min_val=0.0, max_val=1.0)
 
     # training parameters
     check_argument('batch_size', c, restricted=True, val_type=int, min_val=1)