diff --git a/ChangeLog b/ChangeLog
index 7077673013..b161b7e3d2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Thu Jan 27 21:31:57 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* win32/win32.c (rb_w32_aspawn): get rid of too huge alloca().
+	  [Bug #4330] [ruby-core:34898]
+
 Thu Jan 27 20:30:18 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
 	* win32/win32.c (rb_w32_spawn): get rid of too huge alloca().
diff --git a/win32/win32.c b/win32/win32.c
index ff8b70d9e6..83b7f73a2f 100644
--- a/win32/win32.c
+++ b/win32/win32.c
@@ -1241,7 +1241,7 @@ rb_w32_aspawn(int mode, const char *prog, char *const *argv)
 	if (len < sizeof(fbuf))
 	    strlcpy(cmd = fbuf, prog, sizeof(fbuf));
 	else
-	    STRNDUPA(cmd, prog, len);
+	    STRNDUPV(cmd, v, prog, len);
 	translate_char(cmd, '/', '\\');
 	prog = cmd;
     }