diff --git a/requirements-dev.txt b/requirements-dev.txt
index c3726e8..e84cbf4 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1 +1,16 @@
 pyyaml
+setuptools >= 44.1.1  # Old setuptools causes script.module.addon.signals to fail installing
+six >= 1.13
+python-dateutil >= 2.8.1
+requests >= 2.22
+futures >= 2.2; python_version < '3.0'
+
+Kodistubs ~= 18.0; python_version < '3.0'
+Kodistubs ~= 19.0; python_version >= '3.6'
+
+git+https://github.com/romanvm/kodi.six
+git+https://github.com/ruuk/script.module.addon.signals
+
+flake8 >= 3.8
+flake8-import-order >= 0.18
+websocket-client >= 0.57.0
diff --git a/resources/lib/widgets.py b/resources/lib/widgets.py
index cdc72ee..0ccc328 100644
--- a/resources/lib/widgets.py
+++ b/resources/lib/widgets.py
@@ -369,7 +369,7 @@ def get_widget_content(handle, params):
         inprogress_url_params["Filters"] = "IsResumable"
         inprogress_url_params["IsVirtualUnaired"] = False
         inprogress_url_params["IncludeItemTypes"] = "Episode"
-        inprogres_surl_params["Limit"] = 20
+        inprogress_url_params["Limit"] = 20
         in_progress = True
 
     elif widget_type == "movie_recommendations":
diff --git a/tox.ini b/tox.ini
new file mode 100644
index 0000000..6858ea0
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,9 @@
+[flake8]
+max-line-length = 9999
+import-order-style = pep8
+exclude = .git,.vscode,libraries,build.py,.github
+extend-ignore =
+    I202
+per-file-ignores =
+    */__init__.py: F401
+    scripts/process_addon.py: F821