diff --git a/tts/text/normalization/BaseNormalization.py b/tts/text/normalization/base_normalization.py
similarity index 100%
rename from tts/text/normalization/BaseNormalization.py
rename to tts/text/normalization/base_normalization.py
diff --git a/tts/text/normalization/english_normalization.py b/tts/text/normalization/english_normalization.py
index cc37609..bf2c1e7 100644
--- a/tts/text/normalization/english_normalization.py
+++ b/tts/text/normalization/english_normalization.py
@@ -1,4 +1,4 @@
-from tts.text.normalization.BaseNormalization import BaseNormalization
+from tts.text.normalization.base_normalization import BaseNormalization
 from tts.text.normalization.common_cleaners import collapse_whitespace
 from tts.text.normalization.common_cleaners import convert_to_ascii
 from tts.text.normalization.common_cleaners import lowercase
diff --git a/tts/text/normalization/SpanishNormalization.py b/tts/text/normalization/spanish_normalization.py
similarity index 64%
rename from tts/text/normalization/SpanishNormalization.py
rename to tts/text/normalization/spanish_normalization.py
index a8dab9e..7475237 100644
--- a/tts/text/normalization/SpanishNormalization.py
+++ b/tts/text/normalization/spanish_normalization.py
@@ -1,4 +1,4 @@
-from text.normalization.BaseNormalization import BaseNormalization
+from tts.text.normalization.base_normalization import BaseNormalization
 
 class SpanishNormalization(BaseNormalization):