Whitespace normalization.
diff --git a/Lib/encodings/tis_620.py b/Lib/encodings/tis_620.py
index 2ebf311..6e1229e 100644
--- a/Lib/encodings/tis_620.py
+++ b/Lib/encodings/tis_620.py
@@ -38,7 +38,7 @@
 
 decoding_map = decoding_map.copy()
 decoding_map.update({
-	0x00a0: None,
+        0x00a0: None,
 })
 
 ### Encoding Map