diff --git a/src/cmd.c b/src/cmd.c
index f05787fe3..04df10458 100644
--- a/src/cmd.c
+++ b/src/cmd.c
@@ -1,4 +1,4 @@
-/* NetHack 3.6	cmd.c	$NHDT-Date: 1545128652 2018/12/18 10:24:12 $  $NHDT-Branch: NetHack-3.6.2-beta01 $:$NHDT-Revision: 1.322 $ */
+/* NetHack 3.6	cmd.c	$NHDT-Date: 1546038393 2018/12/28 23:06:33 $  $NHDT-Branch: NetHack-3.6.2-beta01 $:$NHDT-Revision: 1.323 $ */
 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
 /*-Copyright (c) Robert Patrick Rankin, 2013. */
 /* NetHack may be freely redistributed.  See license for details. */
@@ -3664,18 +3664,18 @@ STATIC_OVL int
 size_obj(otmp)
 struct obj *otmp;
 {
-    int sz = (int) sizeof(struct obj);
+    int sz = (int) sizeof (struct obj);
 
     if (otmp->oextra) {
-        sz += (int) sizeof(struct oextra);
+        sz += (int) sizeof (struct oextra);
         if (ONAME(otmp))
             sz += (int) strlen(ONAME(otmp)) + 1;
         if (OMONST(otmp))
-            sz += (int) sizeof(struct monst);
+            sz += size_monst(OMONST(otmp), FALSE);
         if (OMID(otmp))
-            sz += (int) sizeof(unsigned);
+            sz += (int) sizeof (unsigned);
         if (OLONG(otmp))
-            sz += (int) sizeof(long);
+            sz += (int) sizeof (long);
         if (OMAILCMD(otmp))
             sz += (int) strlen(OMAILCMD(otmp)) + 1;
     }