diff --git a/ChangeLog b/ChangeLog
index 581d1d337e..9201fe6a03 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Thu Feb 23 19:57:56 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/curses/rain.rb: trap SIGHUP, SIGINT, SIGQUIT and SIGTERM only.
+
 Thu Feb 23 19:56:48 2012  Tanaka Akira  <akr@fsij.org>
 
 	* signal.c (sig_trap): show signal name on error.
diff --git a/ext/curses/rain.rb b/ext/curses/rain.rb
index 36f0f84de2..a6019b26e0 100644
--- a/ext/curses/rain.rb
+++ b/ext/curses/rain.rb
@@ -14,7 +14,7 @@ def ranf
 end
 
 # main #
-for i in 1 .. 15  # SIGHUP .. SIGTERM
+for i in %w[HUP INT QUIT TERM]
   if trap(i, "SIG_IGN") != 0 then  # 0 for SIG_IGN
     trap(i) {|sig| onsig(sig) }
   end