diff --git a/ChangeLog b/ChangeLog
index 52320f7dc1..453a09da91 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Thu Jul  2 07:53:44 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (parser_yylex): fixed wrong variable.
+
 Thu Jul  2 05:37:38 2009  Tanaka Akira  <akr@fsij.org>
 
 	* time.c (num_exact): use to_r for T_FLOAT.
diff --git a/parse.y b/parse.y
index a044a93408..10322e889c 100644
--- a/parse.y
+++ b/parse.y
@@ -7007,7 +7007,7 @@ parser_yylex(struct parser_params *parser)
 		    }
 		    else {
 			int c0 = nextc();
-			if (c == -1 || !ISDIGIT(c0)) {
+			if (c0 == -1 || !ISDIGIT(c0)) {
 			    pushback(c0);
 			    goto decode_num;
 			}