diff --git a/ChangeLog b/ChangeLog
index a9872f0479..8b28749fa8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Thu Apr  9 22:19:19 2015  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (redirect_open): Removed.
+
 Thu Apr  9 21:38:20 2015  Tanaka Akira  <akr@fsij.org>
 
 	* internal.h (rb_execarg_parent_end): Declared.
diff --git a/process.c b/process.c
index cfa141557b..2bb9577c51 100644
--- a/process.c
+++ b/process.c
@@ -2505,20 +2505,10 @@ redirect_close(int fd)
     return ret;
 }
 
-static int
-redirect_open(const char *pathname, int flags, mode_t perm)
-{
-    int ret;
-    ret = open(pathname, flags, perm);
-    ttyprintf("open(\"%s\", 0x%x, 0%o) => %d\n", pathname, flags, perm, ret);
-    return ret;
-}
-
 #else
 #define redirect_dup(oldfd) dup(oldfd)
 #define redirect_dup2(oldfd, newfd) dup2((oldfd), (newfd))
 #define redirect_close(fd) close(fd)
-#define redirect_open(pathname, flags, perm) open((pathname), (flags), (perm))
 #endif
 
 static int