diff --git a/dat/symbols b/dat/symbols
index c9adbda44..5baf3c490 100644
--- a/dat/symbols
+++ b/dat/symbols
@@ -1,4 +1,4 @@
-# NetHack 3.7  symbols       $NHDT-Date: 1596498253 2020/08/03 23:44:13 $  $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.22 $
+# NetHack 3.7  symbols       $NHDT-Date: 1709388512 2024/03/02 14:08:32 $  $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.32 $
 # Copyright (c) 2006 by Michael Allison
 # NetHack may be freely redistributed.  See license for details.
 #
@@ -33,6 +33,10 @@
 # NetHack ttychar symbol as usual. That is true even when the UTF-8
 # handler is in effect.
 #
+# \xnn specifies a hexadecimal value for nn.
+# \0nn specifies a decimal value for nn, not octal as leading 0 indicates
+# in C and programming languages influenced by it.
+
 # plain looks decent for room+corridor levels where there aren't a lot
 # of wall corners and ones present tend to be spread out, but it looks
 # awful for wallified mazes
@@ -91,6 +95,8 @@ start: Blank
         S_dragon: \032
         S_eel: \032
         S_elemental: \032
+        S_engroom: \032
+        S_engrcorr: \032
         S_expl_tl: \032
         S_expl_tc: \032
         S_expl_tr: \032
diff --git a/doc/fixes3-7-0.txt b/doc/fixes3-7-0.txt
index 9a6880644..4e802b0ec 100644
--- a/doc/fixes3-7-0.txt
+++ b/doc/fixes3-7-0.txt
@@ -1,4 +1,4 @@
-NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.1380 $ $NHDT-Date: 1708290308 2024/02/18 21:05:08 $
+NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.1393 $ $NHDT-Date: 1709388534 2024/03/02 14:08:54 $
 
 General Fixes and Modified Features
 -----------------------------------
@@ -1881,6 +1881,9 @@ map didn't show adjacent monsters if they were inside a gas region unless
 	were described as if visible in messages (combat, for instance)
 OPTIONS=symset:blank and symset:plain didn't load the specified symbols if
 	used from the RC file or NETHACKOPTIONS
+for OPTIONS=symset:blank, S_engroom (engraving on a room floor spot) and
+	S_engrcorr (engraving on a corridor spot) retained their default
+	symbols ('`' and '#', respectively) instead of switching to space
 
 
 Fixes to 3.7.0-x Platform and/or Interface Problems Exposed Via git Repository