diff --git a/book/book.tex b/book/book.tex
index cd04cb3..c7c4c94 100644
--- a/book/book.tex
+++ b/book/book.tex
@@ -3278,7 +3278,7 @@ \chapter{Threads}
 they run the same code.  But different threads often run different parts
 of the code.
 
-And they share the same static segment, so if one thread changes a
+And they share the same global segment, so if one thread changes a
 global variable, other threads see the change.  They also share the heap,
 so threads can share dynamically-allocated chunks.