diff --git a/poky/bitbake/lib/ply/yacc.py b/poky/bitbake/lib/ply/yacc.py
index 561784f..46e7dc9 100644
--- a/poky/bitbake/lib/ply/yacc.py
+++ b/poky/bitbake/lib/ply/yacc.py
@@ -1205,7 +1205,7 @@
 
         # Precompute the list of productions immediately following.  Hack. Remove later
         try:
-            p.lr_after = Prodnames[p.prod[n+1]]
+            p.lr_after = self.Prodnames[p.prod[n+1]]
         except (IndexError,KeyError):
             p.lr_after = []
         try: