diff --git a/linux-bootstrap-1.md b/linux-bootstrap-1.md
index 56984e0..b8d83c4 100644
--- a/linux-bootstrap-1.md
+++ b/linux-bootstrap-1.md
@@ -1,4 +1,4 @@
-NU/Linux kernel internals
+GNU/Linux kernel internals
 ================================================================================
 
 Linux kernel booting process. Part 1.