diff --git a/ChangeLog b/ChangeLog
index 09e4859c28..50c4c8b0a2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Sun May  9 06:15:21 2010  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* io.c (nogvl_copy_stream_sendfile): ISO C90 forbids mixed
+	  declarations and code.
+
 Sun May  9 02:57:02 2010  Aaron Patterson <aaron@tenderlovemaking.com>
 
 	* ext/fiddle/lib/fiddle.rb: only require DL if it hasn't been required
diff --git a/io.c b/io.c
index f9c01f3839..b997b89172 100644
--- a/io.c
+++ b/io.c
@@ -8078,8 +8078,9 @@ nogvl_copy_stream_sendfile(struct copy_stream_struct *stp)
         if (use_pread)
             copy_length = src_stat.st_size - src_offset;
         else {
-	    errno = 0;
-            off_t cur = lseek(stp->src_fd, 0, SEEK_CUR);
+            off_t cur;
+            errno = 0;
+            cur = lseek(stp->src_fd, 0, SEEK_CUR);
             if (cur == (off_t)-1 && errno) {
                 stp->syserr = "lseek";
                 stp->error_no = errno;