diff --git a/doc/fixes36.3 b/doc/fixes36.3
index 707de2ca2..1f7985f01 100644
--- a/doc/fixes36.3
+++ b/doc/fixes36.3
@@ -248,6 +248,7 @@ in symset:curses, symbol S_tree was accidentally set to horizontal line where
 	plus-or-minus sign was meant; also, change S_bars to not-equals sign
 percentage highlighting for Xp broke up/down/changed highlighting for it;
 	it was flagged as having gone up every time the percentage changed
+deaf change to zap_over_floor needed to be restricted to player actions only
 curses: sometimes the message window would show a blank line after a prompt
 curses: the change to show map in columns 1..79 instead of 2..80 made the
 	highlight for '@' show up in the wrong place if clipped map had been
diff --git a/src/zap.c b/src/zap.c
index bc4189a47..308754340 100644
--- a/src/zap.c
+++ b/src/zap.c
@@ -4443,7 +4443,9 @@ short exploding_wand_typ;
         } else if (is_pool(x, y)) {
             const char *msgtxt = (!Deaf)
                                      ? "You hear hissing gas." /* Deaf-aware */
-                                     : "That seemed remarkably uneventful.";
+                                     : (type >= 0)
+                                         ? "That seemed remarkably uneventful."
+                                         : (const char *) 0;
 
             if (lev->typ != POOL) { /* MOAT or DRAWBRIDGE_UP */
                 if (see_it)
@@ -4457,7 +4459,8 @@ short exploding_wand_typ;
                 if (see_it)
                     msgtxt = "The water evaporates.";
             }
-            Norep("%s", msgtxt);
+            if (msgtxt)
+                Norep("%s", msgtxt);
             if (lev->typ == ROOM)
                 newsym(x, y);
         } else if (IS_FOUNTAIN(lev->typ)) {