diff --git a/python/README.md b/python/README.md
index b9b3fdc..3e03ec4 100644
--- a/python/README.md
+++ b/python/README.md
@@ -1,6 +1,6 @@
 # Falkon Python Tutorial
 
-1. [Introduction](articles/1.%20Introduction.md)
-2. [Basic extension](articles/2.%20Basic%20extension.md) - [Extension](https://store.falkon.org/p/1301043/)
-3. [Adding a button to the toolbar](articles/3.%20Adding%20a%20button%20to%20the%20toolbar.md) - [Extension](extensions/Tutorial3/)
-4. [Adding entry to the extension menu](articles/4.%20Adding%20entry%20to%20the%20extension%20menu.md) - [Extension](extensions/Tutorial4/)
+1. [Introduction](articles/1.Introduction.md)
+2. [Basic extension](articles/2.Basic_extension.md) - [Extension](https://store.falkon.org/p/1301043/)
+3. [Adding a button to the toolbar](articles/3.Adding_a_button_to_the_toolbar.md) - [Extension](extensions/Tutorial3/)
+4. [Adding entry to the extension menu](articles/4.Adding_entry_to_the_extension_menu.md) - [Extension](extensions/Tutorial4/)
diff --git a/python/articles/1. Introduction.md b/python/articles/1.Introduction.md
similarity index 100%
rename from python/articles/1. Introduction.md
rename to python/articles/1.Introduction.md
diff --git a/python/articles/2. Basic extension.md b/python/articles/2.Basic_extension.md
similarity index 100%
rename from python/articles/2. Basic extension.md
rename to python/articles/2.Basic_extension.md
diff --git a/python/articles/3. Adding a button to the toolbar.md b/python/articles/3.Adding_a_button_to_the_toolbar.md
similarity index 100%
rename from python/articles/3. Adding a button to the toolbar.md
rename to python/articles/3.Adding_a_button_to_the_toolbar.md
diff --git a/python/articles/4. Adding entry to the extension menu.md b/python/articles/4.Adding_entry_to_the_extension_menu.md
similarity index 100%
rename from python/articles/4. Adding entry to the extension menu.md
rename to python/articles/4.Adding_entry_to_the_extension_menu.md