diff --git a/pcmove.cpp b/pcmove.cpp
index b2023941..dad3db06 100644
--- a/pcmove.cpp
+++ b/pcmove.cpp
@@ -419,6 +419,7 @@ struct changes_t {
     forCellEx(c1, cwt.at) ccell(c1);
     value_keep(kills);
     value_keep(items);
+    value_keep(hrngen);
     checking = ch;
     }