diff --git a/ChangeLog b/ChangeLog
index 0a26fed05b..4649ed6f15 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Thu Dec 20 15:47:13 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* enc/iso_8859_{1..16}.c: renamed.
+
 Thu Dec 20 09:59:27 2007  Koichi Sasada  <ko1@atdot.net>
 
 	* insnhelper.ci (vm_expandarray): fix sp increase place.
diff --git a/enc/iso8859_1.c b/enc/iso_8859_1.c
similarity index 100%
rename from enc/iso8859_1.c
rename to enc/iso_8859_1.c
diff --git a/enc/iso8859_10.c b/enc/iso_8859_10.c
similarity index 100%
rename from enc/iso8859_10.c
rename to enc/iso_8859_10.c
diff --git a/enc/iso8859_11.c b/enc/iso_8859_11.c
similarity index 100%
rename from enc/iso8859_11.c
rename to enc/iso_8859_11.c
diff --git a/enc/iso8859_13.c b/enc/iso_8859_13.c
similarity index 100%
rename from enc/iso8859_13.c
rename to enc/iso_8859_13.c
diff --git a/enc/iso8859_14.c b/enc/iso_8859_14.c
similarity index 100%
rename from enc/iso8859_14.c
rename to enc/iso_8859_14.c
diff --git a/enc/iso8859_15.c b/enc/iso_8859_15.c
similarity index 100%
rename from enc/iso8859_15.c
rename to enc/iso_8859_15.c
diff --git a/enc/iso8859_16.c b/enc/iso_8859_16.c
similarity index 100%
rename from enc/iso8859_16.c
rename to enc/iso_8859_16.c
diff --git a/enc/iso8859_2.c b/enc/iso_8859_2.c
similarity index 100%
rename from enc/iso8859_2.c
rename to enc/iso_8859_2.c
diff --git a/enc/iso8859_3.c b/enc/iso_8859_3.c
similarity index 100%
rename from enc/iso8859_3.c
rename to enc/iso_8859_3.c
diff --git a/enc/iso8859_4.c b/enc/iso_8859_4.c
similarity index 100%
rename from enc/iso8859_4.c
rename to enc/iso_8859_4.c
diff --git a/enc/iso8859_5.c b/enc/iso_8859_5.c
similarity index 100%
rename from enc/iso8859_5.c
rename to enc/iso_8859_5.c
diff --git a/enc/iso8859_6.c b/enc/iso_8859_6.c
similarity index 100%
rename from enc/iso8859_6.c
rename to enc/iso_8859_6.c
diff --git a/enc/iso8859_7.c b/enc/iso_8859_7.c
similarity index 100%
rename from enc/iso8859_7.c
rename to enc/iso_8859_7.c
diff --git a/enc/iso8859_8.c b/enc/iso_8859_8.c
similarity index 100%
rename from enc/iso8859_8.c
rename to enc/iso_8859_8.c
diff --git a/enc/iso8859_9.c b/enc/iso_8859_9.c
similarity index 100%
rename from enc/iso8859_9.c
rename to enc/iso_8859_9.c