diff --git a/Appendix-A:-Printed-circuit-boards.md b/Appendix-A:-Printed-circuit-boards.md
index fcd7452..528c3f4 100644
--- a/Appendix-A:-Printed-circuit-boards.md
+++ b/Appendix-A:-Printed-circuit-boards.md
@@ -59,4 +59,4 @@ If you've never soldered surface mount components before, or want a refresher on
 
 Congrats, you finished assembling the electronics! Pat yourself on the back.
 
-You'll need to program the microcontroller before it works. Head over to [Appendix C: Firmware programming] to get at it.
+You'll need to program the microcontroller before it works. Head over to [[Appendix C: Firmware programming]] to get at it.