diff --git a/ChangeLog b/ChangeLog
index e675e2514..f230f3ffd 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2008-08-24  Tatsuhiro Tsujikawa  <tujikawa at rednoah dot com>
+
+	Externalized message.
+	* src/RequestGroupMan.cc
+	* src/message.h
+
 2008-08-24  Tatsuhiro Tsujikawa  <tujikawa at rednoah dot com>
 
 	Save temporary file first and rename to the destination on success.
diff --git a/src/RequestGroupMan.cc b/src/RequestGroupMan.cc
index 9cc4ce72a..fc9a61f57 100644
--- a/src/RequestGroupMan.cc
+++ b/src/RequestGroupMan.cc
@@ -483,16 +483,14 @@ bool RequestGroupMan::loadServerStat(const std::string& filename)
 {
   std::ifstream in(filename.c_str());
   if(!in) {
-    _logger->error("Failed to open ServerStat file %s for read.",
-		   filename.c_str());
+    _logger->error(MSG_OPENING_READABLE_SERVER_STAT_FILE_FAILED, filename.c_str());
     return false;
   }
   if(_serverStatMan->load(in)) {
-    _logger->notice("ServerStat file %s loaded successfully.",
-		    filename.c_str());
+    _logger->notice(MSG_SERVER_STAT_LOADED, filename.c_str());
     return true;
   } else {
-    _logger->error("Failed to read ServerStat from %s.", filename.c_str());
+    _logger->error(MSG_READING_SERVER_STAT_FILE_FAILED, filename.c_str());
     return false;
   }
 }
@@ -502,15 +500,15 @@ bool RequestGroupMan::saveServerStat(const std::string& filename) const
   std::string tempfile = filename+"__temp";
   std::ofstream out(tempfile.c_str());
   if(!out) {
-    _logger->error("Failed to open ServerStat file %s for write.",
+    _logger->error(MSG_OPENING_WRITABLE_SERVER_STAT_FILE_FAILED,
 		   tempfile.c_str());
     return false;
   }
   if(_serverStatMan->save(out) && File(tempfile).renameTo(filename)) {
-    _logger->notice("ServerStat file %s saved successfully.", filename.c_str());
+    _logger->notice(MSG_SERVER_STAT_SAVED, filename.c_str());
     return true;
   } else {
-    _logger->error("Failed to write ServerStat to %s.", filename.c_str());
+    _logger->error(MSG_WRITING_SERVER_STAT_FILE_FAILED, filename.c_str());
     return false;
   }
 }
diff --git a/src/message.h b/src/message.h
index 31d1fe716..0584e3f6a 100644
--- a/src/message.h
+++ b/src/message.h
@@ -144,6 +144,16 @@
 			      " doesn't verify signatures.")
 #define MSG_SIGNATURE_NOT_SAVED _("Saving signature as %s failed. Maybe file"\
 				  " already exists.")
+#define MSG_OPENING_READABLE_SERVER_STAT_FILE_FAILED \
+  _("Failed to open ServerStat file %s for read.")
+#define MSG_SERVER_STAT_LOADED _("ServerStat file %s loaded successfully.")
+#define MSG_READING_SERVER_STAT_FILE_FAILED _("Failed to read ServerStat from" \
+					      " %s.")
+#define MSG_OPENING_WRITABLE_SERVER_STAT_FILE_FAILED \
+  _("Failed to open ServerStat file %s for write.")
+#define MSG_SERVER_STAT_SAVED _("ServerStat file %s saved successfully.")
+#define MSG_WRITING_SERVER_STAT_FILE_FAILED _("Failed to write ServerStat to"\
+					      " %s.")
 
 #define EX_TIME_OUT _("Timeout.")
 #define EX_INVALID_CHUNK_SIZE _("Invalid chunk size.")