Index: Zend/zend_compile.c
===================================================================
RCS file: /repository/ZendEngine2/zend_compile.c,v
retrieving revision 1.563
diff -u -u -r1.563 zend_compile.c
--- Zend/zend_compile.c	26 Mar 2004 20:05:19 -0000	1.563
+++ Zend/zend_compile.c	8 Apr 2004 19:14:36 -0000
@@ -3323,7 +3323,7 @@
 		value = tmp;
 	}
 
-	if (key->u.EA.type & ZEND_PARSED_REFERENCE_VARIABLE) {
+	if (key->op_type != IS_UNUSED && (key->u.EA.type & ZEND_PARSED_REFERENCE_VARIABLE)) {
 		zend_error(E_COMPILE_ERROR, "Key element cannot be a reference");
 	}