diff --git a/part2-building/README.md b/part2-building/README.md
index 1ae1548..4dbdba4 100644
--- a/part2-building/README.md
+++ b/part2-building/README.md
@@ -1,7 +1,7 @@
 Writing a "bare metal" operating system for Raspberry Pi 4 (Part 2)
 ===================================================================
 
-[< Go back to part1-bootstrapping](./part1-bootstrapping/)
+[< Go back to part1-bootstrapping](../part1-bootstrapping/)
 
 Making a makefile
 -----------------