diff --git a/packages/linuxcnc/default.nix b/packages/linuxcnc/default.nix
index 082531f..b92a907 100644
--- a/packages/linuxcnc/default.nix
+++ b/packages/linuxcnc/default.nix
@@ -6,6 +6,7 @@
 let
   pythonPkg = (python3Full.withPackages (ps: [
     yapps
+    ps.pyserial # for camera feedback into linuxcnc
     ps.pyopengl
     ps.pygobject3
     ps.pycairo