diff --git a/.gitignore b/.gitignore
index 26aaade..6101170 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,9 +2,11 @@ bin/echo
 bin/false
 bin/id
 bin/lowercase
+bin/nonzero
 bin/nutshell
 bin/roll
 bin/simexec
+bin/sleep
 bin/sysexits
 build/*
 include/sysexits.h