diff --git a/posix_shell.md b/posix_shell.md
index 05a2c00..2a81d63 100644
--- a/posix_shell.md
+++ b/posix_shell.md
@@ -205,7 +205,7 @@ the same as their dedicated counterparts.
 - `.` The working directory
 - `..` Parent directory of the working directory
 - `/dev/null` Your personal trash can to redirect all the output you don’t care about to.
-Also known as a black hole or the indefinite void. :)
+Also known as a black hole or the infinite void. :)
 - `/dev/urandom` Source of infinite random data
 - `/dev/zero` Source of infinite null bytes