diff --git a/src/beamShiftAxis.h b/src/beamShiftAxis.h
index c0ac278..44f39c8 100644
--- a/src/beamShiftAxis.h
+++ b/src/beamShiftAxis.h
@@ -3,7 +3,7 @@
 #include "turboPmacAxis.h"
 #include "turboPmacController.h"
 
-class beamShiftAxis : public turboPmacAxis {
+class HIDDEN beamShiftAxis : public turboPmacAxis {
   public:
     /**
      * @brief Construct a new beamShiftAxis
diff --git a/turboPmac b/turboPmac
index f423002..d41e7bf 160000
--- a/turboPmac
+++ b/turboPmac
@@ -1 +1 @@
-Subproject commit f423002d23aa958f48c3d63dd8887439ff26ae0f
+Subproject commit d41e7bf054432959e66f2c1563a1549a5a8d89b9