diff --git a/embedded-workshop-book/src/SUMMARY.md b/embedded-workshop-book/src/SUMMARY.md
index 99701c3..d5d8dce 100644
--- a/embedded-workshop-book/src/SUMMARY.md
+++ b/embedded-workshop-book/src/SUMMARY.md
@@ -28,6 +28,7 @@
     - [BSC Exercise](./bsc-exercise.md)
       - [Button Implementation](./button-implementation.md)
       - [UARTE Implementation](./uarte-implementation.md)
+    - [PAC Exercise](./pac-exercise.md)
 - [Advanced Workbook](./advanced-workbook.md)
     - [Code Organization](./code-organisation.md)
     - [Listing USB Devices](./listing-usb-devices.md)
diff --git a/embedded-workshop-book/src/pac_exercise.md b/embedded-workshop-book/src/pac-exercise.md
similarity index 100%
rename from embedded-workshop-book/src/pac_exercise.md
rename to embedded-workshop-book/src/pac-exercise.md