diff --git a/ChangeLog b/ChangeLog
index 20d42d2fb..359a90cf5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -2,6 +2,9 @@
 
         * Source/NSLocale.m: ([-_getExemplarCharacterSet]) Fix error in handling
         returned range (bug #38118 reported by X Y <macgritsch>
+        * Source/NSPropertyList.m: Fix encoding of date objects when using the
+        OpenStep format to simply used the description of the3 date.
+        Fixes bug #38017
 
 2013-01-14  Richard Frith-Macdonald <rfm@gnu.org>
 
diff --git a/Source/NSPropertyList.m b/Source/NSPropertyList.m
index c6f1247f9..fc08f931a 100644
--- a/Source/NSPropertyList.m
+++ b/Source/NSPropertyList.m
@@ -1978,9 +1978,7 @@ OAppend(id obj, NSDictionary *loc, unsigned lev, unsigned step,
 	}
       else
 	{
-	  obj = [obj descriptionWithCalendarFormat: @"%Y-%m-%d %H:%M:%S %z"
-	    timeZone: z locale: nil];
-	  PString(obj, dest);
+	  PString([obj description], dest);
 	}
     }
   else if ([obj isKindOfClass: NSArrayClass])