diff --git a/.gitignore b/.gitignore
index dd5e2e9..de9c037 100644
--- a/.gitignore
+++ b/.gitignore
@@ -61,3 +61,4 @@ Temporary Items
 # End of https://www.toptal.com/developers/gitignore/api/osx
 creds*.h
 !creds.dist.h
+pcb/