diff --git a/Lib/difflib.py b/Lib/difflib.py
index e5910bc..b1f92d6 100644
--- a/Lib/difflib.py
+++ b/Lib/difflib.py
@@ -1714,7 +1714,7 @@
             line = line.replace(' ','\0')
             # expand tabs into spaces
             line = line.expandtabs(self._tabsize)
-            # relace spaces from expanded tabs back into tab characters
+            # replace spaces from expanded tabs back into tab characters
             # (we'll replace them with markup after we do differencing)
             line = line.replace(' ','\t')
             return line.replace('\0',' ').rstrip('\n')