X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/d143e9c33f07e1a9966c10077f43e2f81232bf6c..5422d56a718805a2470558808355e04182a12d65:/src/symtab.c

diff --git a/src/symtab.c b/src/symtab.c
index f9f78b31..f065c80d 100644
--- a/src/symtab.c
+++ b/src/symtab.c
@@ -368,10 +368,11 @@ symbol_user_token_number_set (symbol *sym, int user_token_number, location loc)
   if (user_token_number == 0)
     {
       endtoken = sym;
-      endtoken->number = 0;
       /* It is always mapped to 0, so it was already counted in
 	 NTOKENS.  */
-      --ntokens;
+      if (endtoken->number != NUMBER_UNDEFINED)
+        --ntokens;
+      endtoken->number = 0;
     }
 }