diff --git a/course/_toc.yml b/course/_toc.yml
index 7180c55..211e3f8 100644
--- a/course/_toc.yml
+++ b/course/_toc.yml
@@ -14,3 +14,4 @@ parts:
     - file: practicals/chapter_1
     - file: practicals/chapter_2
     - file: practicals/chapter_3
+    - file: practicals/chapter_4
diff --git a/course/practicals/chapter_1.md b/course/practicals/chapter_1.md
index ccdf88a..65021ee 100644
--- a/course/practicals/chapter_1.md
+++ b/course/practicals/chapter_1.md
@@ -1,4 +1,4 @@
-# **Chapter 1 - Starting programming with Python test**
+# **Chapter 1 - Starting programming with Python**
 
 ```{important}
 ***NOTES ABOUT CHAPTER 1***