diff --git a/pdfminer/lzw.py b/pdfminer/lzw.py
index 3ab8147..078ac04 100644
--- a/pdfminer/lzw.py
+++ b/pdfminer/lzw.py
@@ -3,6 +3,7 @@ from io import BytesIO
 
 import six  #Python 2+3 compatibility
 
+import logging
 
 class CorruptDataError(Exception):
     pass
@@ -89,8 +90,8 @@ class LZWDecoder(object):
                 # just ignore corrupt data and stop yielding there
                 break
             yield x
-            #log.debug('nbits=%d, code=%d, output=%r, table=%r' %
-            #          (self.nbits, code, x, self.table[258:]))
+            logging.debug('nbits=%d, code=%d, output=%r, table=%r' %
+                          (self.nbits, code, x, self.table[258:]))
         return