diff --git a/src/calibre/gui2/tweak_book/editor/smart/__init__.py b/src/calibre/gui2/tweak_book/editor/smarts/__init__.py
similarity index 100%
rename from src/calibre/gui2/tweak_book/editor/smart/__init__.py
rename to src/calibre/gui2/tweak_book/editor/smarts/__init__.py
diff --git a/src/calibre/gui2/tweak_book/editor/smart/css.py b/src/calibre/gui2/tweak_book/editor/smarts/css.py
similarity index 92%
rename from src/calibre/gui2/tweak_book/editor/smart/css.py
rename to src/calibre/gui2/tweak_book/editor/smarts/css.py
index 6268ed9e62..051f31c749 100644
--- a/src/calibre/gui2/tweak_book/editor/smart/css.py
+++ b/src/calibre/gui2/tweak_book/editor/smarts/css.py
@@ -6,7 +6,7 @@ from __future__ import (unicode_literals, division, absolute_import,
 __license__ = 'GPL v3'
 __copyright__ = '2014, Kovid Goyal <kovid at kovidgoyal.net>'
 
-from calibre.gui2.tweak_book.editor.smart import NullSmarts
+from calibre.gui2.tweak_book.editor.smarts import NullSmarts
 
 def find_rule(raw, rule_address):
     import tinycss
diff --git a/src/calibre/gui2/tweak_book/editor/smart/html.py b/src/calibre/gui2/tweak_book/editor/smarts/html.py
similarity index 99%
rename from src/calibre/gui2/tweak_book/editor/smart/html.py
rename to src/calibre/gui2/tweak_book/editor/smarts/html.py
index ba2b1344c6..61e873b235 100644
--- a/src/calibre/gui2/tweak_book/editor/smart/html.py
+++ b/src/calibre/gui2/tweak_book/editor/smarts/html.py
@@ -17,7 +17,7 @@ from calibre.gui2 import error_dialog
 from calibre.gui2.tweak_book.editor.syntax.html import ATTR_NAME, ATTR_END, ATTR_START, ATTR_VALUE
 from calibre.utils.icu import utf16_length
 from calibre.gui2.tweak_book import tprefs
-from calibre.gui2.tweak_book.editor.smart import NullSmarts
+from calibre.gui2.tweak_book.editor.smarts import NullSmarts
 
 get_offset = itemgetter(0)
 PARAGRAPH_SEPARATOR = '\u2029'
diff --git a/src/calibre/gui2/tweak_book/editor/smart/python.py b/src/calibre/gui2/tweak_book/editor/smarts/python.py
similarity index 98%
rename from src/calibre/gui2/tweak_book/editor/smart/python.py
rename to src/calibre/gui2/tweak_book/editor/smarts/python.py
index 5e285960e8..6ce3701f04 100644
--- a/src/calibre/gui2/tweak_book/editor/smart/python.py
+++ b/src/calibre/gui2/tweak_book/editor/smarts/python.py
@@ -10,7 +10,7 @@ import re
 
 from PyQt5.Qt import Qt
 
-from calibre.gui2.tweak_book.editor.smart import NullSmarts
+from calibre.gui2.tweak_book.editor.smarts import NullSmarts
 
 def get_text_before_cursor(editor):
     cursor = editor.textCursor()
diff --git a/src/calibre/gui2/tweak_book/editor/text.py b/src/calibre/gui2/tweak_book/editor/text.py
index a8b8040e19..a4c3206d6b 100644
--- a/src/calibre/gui2/tweak_book/editor/text.py
+++ b/src/calibre/gui2/tweak_book/editor/text.py
@@ -23,7 +23,7 @@ from calibre.gui2.tweak_book.editor import (
     SYNTAX_PROPERTY, SPELL_PROPERTY, SPELL_LOCALE_PROPERTY, store_locale, LINK_PROPERTY)
 from calibre.gui2.tweak_book.editor.themes import get_theme, theme_color, theme_format
 from calibre.gui2.tweak_book.editor.syntax.base import SyntaxHighlighter
-from calibre.gui2.tweak_book.editor.smart import NullSmarts
+from calibre.gui2.tweak_book.editor.smarts import NullSmarts
 from calibre.spell.break_iterator import index_of
 from calibre.utils.icu import safe_chr, string_length, capitalize, upper, lower, swapcase
 from calibre.utils.titlecase import titlecase
@@ -40,7 +40,7 @@ def get_highlighter(syntax):
 def get_smarts(syntax):
     smartsname = {'xml':'html'}.get(syntax, syntax)
     try:
-        return importlib.import_module('calibre.gui2.tweak_book.editor.smart.' + smartsname).Smarts
+        return importlib.import_module('calibre.gui2.tweak_book.editor.smarts.' + smartsname).Smarts
     except (ImportError, AttributeError):
         pass
 
@@ -814,7 +814,7 @@ class TextEdit(PlainTextEdit):
             return self.selected_text_from_cursor(c)
 
     def goto_css_rule(self, rule_address, sourceline_address=None):
-        from calibre.gui2.tweak_book.editor.smart.css import find_rule
+        from calibre.gui2.tweak_book.editor.smarts.css import find_rule
         block = None
         if self.syntax == 'css':
             raw = unicode(self.toPlainText())