diff --git a/nw/convert/tokenizer.py b/nw/convert/tokenizer.py
index f891a9f7..59508d4c 100644
--- a/nw/convert/tokenizer.py
+++ b/nw/convert/tokenizer.py
@@ -32,7 +32,7 @@ import nw
 from operator import itemgetter
 from PyQt5.QtCore import QRegularExpression
 
-from nw.project.document import NWDoc
+from nw.core.document import NWDoc
 from nw.tools.translate import numberToWord
 from nw.constants import nwItemLayout
 
diff --git a/nw/core/__init__.py b/nw/core/__init__.py
new file mode 100644
index 00000000..8bc04dcd
--- /dev/null
+++ b/nw/core/__init__.py
@@ -0,0 +1,11 @@
+# -*- coding: utf-8 -*-
+
+from nw.core.document import NWDoc
+from nw.core.index import NWIndex
+from nw.core.project import NWProject
+
+__all__ = [
+    "NWDoc",
+    "NWIndex",
+    "NWProject",
+]
diff --git a/nw/project/document.py b/nw/core/document.py
similarity index 100%
rename from nw/project/document.py
rename to nw/core/document.py
diff --git a/nw/project/index.py b/nw/core/index.py
similarity index 100%
rename from nw/project/index.py
rename to nw/core/index.py
diff --git a/nw/project/project.py b/nw/core/project.py
similarity index 100%
rename from nw/project/project.py
rename to nw/core/project.py
diff --git a/nw/gui/dialogs/docmerge.py b/nw/gui/dialogs/docmerge.py
index 887e8b72..097f4217 100644
--- a/nw/gui/dialogs/docmerge.py
+++ b/nw/gui/dialogs/docmerge.py
@@ -34,7 +34,7 @@ from PyQt5.QtWidgets import (
     QListWidget, QAbstractItemView, QListWidgetItem
 )
 from nw.constants import nwAlert, nwItemType
-from nw.project import NWDoc
+from nw.core import NWDoc
 
 logger = logging.getLogger(__name__)
 
diff --git a/nw/gui/dialogs/docsplit.py b/nw/gui/dialogs/docsplit.py
index 55be4ee4..bfb4e8ee 100644
--- a/nw/gui/dialogs/docsplit.py
+++ b/nw/gui/dialogs/docsplit.py
@@ -34,7 +34,7 @@ from PyQt5.QtWidgets import (
     QListWidget, QAbstractItemView, QListWidgetItem
 )
 from nw.constants import nwAlert, nwItemType, nwItemClass, nwItemLayout
-from nw.project import NWDoc
+from nw.core import NWDoc
 
 logger = logging.getLogger(__name__)
 
diff --git a/nw/gui/elements/doceditor.py b/nw/gui/elements/doceditor.py
index 7681fe62..f7d494e1 100644
--- a/nw/gui/elements/doceditor.py
+++ b/nw/gui/elements/doceditor.py
@@ -39,7 +39,7 @@ from PyQt5.QtGui import (
     QTextDocument, QCursor
 )
 
-from nw.project import NWDoc
+from nw.core import NWDoc
 from nw.gui.tools import GuiDocHighlighter, WordCounter
 from nw.gui.elements.doctitlebar import GuiDocTitleBar
 from nw.tools import NWSpellSimple
diff --git a/nw/gui/elements/doctree.py b/nw/gui/elements/doctree.py
index 09330346..92a006de 100644
--- a/nw/gui/elements/doctree.py
+++ b/nw/gui/elements/doctree.py
@@ -34,7 +34,7 @@ from PyQt5.QtWidgets import (
     QTreeWidget, QTreeWidgetItem, QAbstractItemView, QApplication, QMessageBox
 )
 
-from nw.project import NWDoc
+from nw.core import NWDoc
 from nw.constants import (
     nwLabels, nwItemType, nwItemClass, nwItemLayout, nwAlert
 )
diff --git a/nw/guimain.py b/nw/guimain.py
index 935c1fb2..4241c043 100644
--- a/nw/guimain.py
+++ b/nw/guimain.py
@@ -45,7 +45,7 @@ from nw.gui import (
     GuiConfigEditor, GuiProjectEditor, GuiItemEditor, GuiProjectOutline,
     GuiSessionLogView, GuiDocMerge, GuiDocSplit, GuiProjectLoad
 )
-from nw.project import NWProject, NWDoc, NWIndex
+from nw.core import NWProject, NWDoc, NWIndex
 from nw.tools import countWords
 from nw.constants import nwFiles, nwItemType, nwAlert
 
diff --git a/nw/project/__init__.py b/nw/project/__init__.py
deleted file mode 100644
index f2a0fe0c..00000000
--- a/nw/project/__init__.py
+++ /dev/null
@@ -1,11 +0,0 @@
-# -*- coding: utf-8 -*-
-
-from nw.project.document import NWDoc
-from nw.project.index import NWIndex
-from nw.project.project import NWProject
-
-__all__ = [
-    "NWDoc",
-    "NWIndex",
-    "NWProject",
-]
diff --git a/tests/test_item.py b/tests/test_item.py
index b58f1b7e..64268e62 100644
--- a/tests/test_item.py
+++ b/tests/test_item.py
@@ -9,7 +9,7 @@ from lxml import etree
 from nwdummy import DummyMain
 
 from nw.config import Config
-from nw.project.project import NWProject, NWItem
+from nw.core.project import NWProject, NWItem
 from nw.constants import nwItemClass, nwItemType, nwItemLayout
 
 theConf = Config()
diff --git a/tests/test_project.py b/tests/test_project.py
index c029fbba..7d920a37 100644
--- a/tests/test_project.py
+++ b/tests/test_project.py
@@ -10,8 +10,8 @@ from nwtools import *
 from nwdummy import DummyMain
 
 from nw.config import Config
-from nw.project.project import NWProject
-from nw.project.index import NWIndex
+from nw.core.project import NWProject
+from nw.core.index import NWIndex
 from nw.constants import nwItemClass
 
 theConf = Config()