diff --git a/src/language.yacc b/src/language.yacc
index 8c3c54b053964dcc37fa98d9d045eafa4fd517a2..4349512b619a9cdab27c9df97877a2864ec2e6c1 100644
--- a/src/language.yacc
+++ b/src/language.yacc
@@ -162,7 +162,7 @@
 /* This is the grammar definition of Pike. */
 
 #include "global.h"
-RCSID("$Id: language.yacc,v 1.62 1998/03/01 03:42:08 hubbe Exp $");
+RCSID("$Id: language.yacc,v 1.63 1998/03/04 16:38:17 grubba Exp $");
 #ifdef HAVE_MEMORY_H
 #include <memory.h>
 #endif
@@ -1318,6 +1318,10 @@ low_idents: F_IDENTIFIER
 	       $$=mknode(F_UNDEFINED,0,0);
 	     }
 	   }
+      } else {
+	push_int(0);
+	$$=mkconstantsvaluenode(sp-1);
+	pop_stack();
       }
     }
     free_node($1);