diff --git a/scripts/maint/updateFallbackDirs.py b/scripts/maint/updateFallbackDirs.py
index c003a1b6a2..464d8476f0 100755
--- a/scripts/maint/updateFallbackDirs.py
+++ b/scripts/maint/updateFallbackDirs.py
@@ -219,8 +219,7 @@ def cleanse_unprintable(raw_string):
   # Remove all unprintable characters
   cleansed_string = ''
   for c in raw_string:
-    if (c in string.ascii_letters or c in string.digits
-        or c in string.punctuation or c in string.whitespace):
+    if c in string.printable:
       cleansed_string += c
   return cleansed_string