diff --git a/src/print.c b/src/print.c
index 6576b387005..84625a89edd 100644
--- a/src/print.c
+++ b/src/print.c
@@ -1494,7 +1494,7 @@ print_object (obj, printcharfun, escapeflag)
 
   /* Detect circularities and truncate them.  */
   if (STRINGP (obj) || CONSP (obj) || VECTORP (obj)
-      || COMPILEDP (obj) || CHAR_TABLE_P (obj)
+      || COMPILEDP (obj) || CHAR_TABLE_P (obj) || SUB_CHAR_TABLE_P (obj)
       || (! NILP (Vprint_gensym)
 	  && SYMBOLP (obj)
 	  && !SYMBOL_INTERNED_P (obj)))