diff --git a/master/mstAi.json b/master/mstAi.json
index 45372b684..42912dac9 100644
--- a/master/mstAi.json
+++ b/master/mstAi.json
@@ -375671,7 +375671,7 @@
     "probability": 50,
     "vals": []
 }, {
-    "actNum": -1,
+    "actNum": null,
     "aiActId": 3018,
     "avals": [94038803, 0],
     "cond": 31,