diff --git a/ChangeLog b/ChangeLog
index e74403b4b4..6e8c8d569b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Thu Mar  1 21:38:07 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (stmt, arg): should not omit lhs of OP_ASGN1 even if
+	  empty.  [ruby-dev:30452]
+
 Thu Mar  1 02:55:25 2007  Akinori MUSHA  <knu@iDaemons.org>
 
 	* ext/digest/digest.c (get_digest_base_metadata): Allow inheriting
diff --git a/parse.y b/parse.y
index 93ded14d6b..1fc7b4d8b9 100644
--- a/parse.y
+++ b/parse.y
@@ -996,6 +996,7 @@ stmt		: keyword_alias fitem {lex_state = EXPR_FNAME;} fitem
 			NODE *args = $3;
 
 			value_expr($6);
+			if (!$3) $3 = NEW_ZARRAY();
 			args = arg_concat($6, $3);
 			if ($5 == tOROP) {
 			    $5 = 0;
@@ -1778,6 +1779,7 @@ arg		: lhs '=' arg
                         NODE *args;
 
 			value_expr($6);
+			if (!$3) $3 = NEW_ZARRAY();
 			args = arg_concat($6, $3);
 			if ($5 == tOROP) {
 			    $5 = 0;