diff --git a/labs/lab-7.md b/labs/lab-7.md
index f6cafc6..b859e1d 100644
--- a/labs/lab-7.md
+++ b/labs/lab-7.md
@@ -3,11 +3,11 @@ layout: spec
 latex: true
 ---
 
-# Lab 7: Designing a PCB using Altium Designer
+# Lab 5: Designing a PCB using Altium Designer
 
 ## Contents
 
-- [Lab 7: Designing a PCB using Altium Designer](#lab-7-designing-a-pcb-using-altium-designer)
+- [Lab 5: Designing a PCB using Altium Designer](#lab-7-designing-a-pcb-using-altium-designer)
   - [Contents](#contents)
   - [Introduction](#introduction)
   - [Participation](#participation)