--- a/js/src/jsparse.cpp
+++ b/js/src/jsparse.cpp
@@ -428,19 +428,17 @@ RecycleTree(JSParseNode *pn, JSTreeConte
          * linkage overhead or (alternatively) unlinking runtime complexity.
          * Yes, this means dead code can contribute to static analysis results!
          *
          * Do recycle kids here, since they are no longer needed.
          */
         pn->pn_next = NULL;
         RecycleFuncNameKids(pn, tc);
     } else {
-        /* We don't recycle funboxes, so just drop it. No need to unlink. */
-        pn->pn_funbox = NULL;
-
+        UnlinkFunctionBoxes(pn, tc);
         head = &tc->parser->nodeList;
         pn->pn_next = *head;
         *head = pn;
 #ifdef METER_PARSENODES
         recyclednodes++;
 #endif
     }
     return next;