diff --git a/src/allmain.c b/src/allmain.c
index 918da029a..87235a252 100644
--- a/src/allmain.c
+++ b/src/allmain.c
@@ -328,7 +328,6 @@ moveloop_core(void)
                 if (gw.were_changes) {
                     /* update innate intrinsics (mainly Drain_resistance) */
                     set_uasmon();
-                    gw.were_changes = 0L;
                 }
                 mkot_trap_warn();
                 dosounds();
diff --git a/src/polyself.c b/src/polyself.c
index 623bf1976..625d00720 100644
--- a/src/polyself.c
+++ b/src/polyself.c
@@ -120,6 +120,8 @@ set_uasmon(void)
     if (VIA_WINDOWPORT())
         status_initialize(REASSESS_ONLY);
 #endif
+    /* we can reset this now, having just done what it is meant to trigger */
+    gw.were_changes = 0L;
 }
 
 /* Levitation overrides Flying; set or clear BFlying|I_SPECIAL */