diff --git a/lkmpg.tex b/lkmpg.tex
index c3fa29a7..2239320a 100644
--- a/lkmpg.tex
+++ b/lkmpg.tex
@@ -591,7 +591,7 @@ \subsection{Passing Command Line Arguments to a Module}
 myintarray[1] = -1
 got 2 arguments for myintarray.
 
-$ sudo rmmod hello-5
+$ sudo rmmod hello_5
 $ sudo dmesg -t | tail -1
 Goodbye, world 5