diff --git a/docs/03-Linux-Core-Concepts/04-Lab-Linux-Kernel.md b/docs/03-Linux-Core-Concepts/04-Lab-Linux-Kernel.md
index 2afef64..632ef4d 100644
--- a/docs/03-Linux-Core-Concepts/04-Lab-Linux-Kernel.md
+++ b/docs/03-Linux-Core-Concepts/04-Lab-Linux-Kernel.md
@@ -9,7 +9,7 @@ $ uname -r
 
 what is the kernel version in 4.15.0-88-generic?
 ```
-Look for the first digit. In this case, it is 15
+Look for the first digit. In this case, it is 4
 ```
 
 What is the major version number of the kernel 4.15.0-88-generic