diff --git a/.gitignore b/.gitignore
index dae7a28..a336197 100644
--- a/.gitignore
+++ b/.gitignore
@@ -59,3 +59,4 @@ doc/**/*.pdf
 build
 src/03-led-controller/led-controller
 src/04-multiprocessing/multiprocessing
+src/04-multiprocessing/cgroups