diff --git a/ChangeLog b/ChangeLog
index 71036dc9e9..26e5031bd8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Mon Dec 24 15:29:13 2007  Tanaka Akira  <akr@fsij.org>
+
+	* tool/serb.rb: removed.
+
 Mon Dec 24 13:55:35 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* proc.c (rb_proc_new), vm.c (invoke_block): removed u3.state magic.
diff --git a/tool/serb.rb b/tool/serb.rb
deleted file mode 100644
index edba8966c7..0000000000
--- a/tool/serb.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-def serb(str, var)
-  result = ''
-  str.each_line {|line|
-    if /\A!/ =~ line
-      result << $'
-    else
-      line.split(/(<%.*?%>)/).each {|x|
-        if /\A<%(.*)%>\z/ =~ x
-          result << "#{var} << (#{$1}).to_s\n"
-        else
-          result << "#{var} << #{x.dump}\n"
-        end
-      }
-    end
-  }
-  result
-end