diff --git a/src/kiri/dev/cam/Makera.Carvera.Air.json b/src/kiri/dev/cam/Makera.Carvera.Air.json
index 56df45e4..8474dd18 100644
--- a/src/kiri/dev/cam/Makera.Carvera.Air.json
+++ b/src/kiri/dev/cam/Makera.Carvera.Air.json
@@ -22,7 +22,8 @@
         "G4 P{time} ; dwell for {time}ms"
     ],
     "gcodeSpindle": [
-        "M3 S{spindle}"
+        "M3 S{spindle}",
+        "G4 P4000"
     ],
     "gcodeChange": [
         "M6 T{tool} ; change tool to '{tool_name}'"