diff --git a/ChangeLog b/ChangeLog
index c4359e16fc..98c1a378cc 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Mon Sep 28 22:33:11 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dln.c (aix_loaderror): needs format string.
+
 Mon Sep 28 10:06:38 2009  NARUSE, Yui  <naruse@ruby-lang.org>
 
 	* stringio/stringio.c (strio_read): set ASCII-8BIT encoding
diff --git a/dln.c b/dln.c
index 6849d28506..3607f018e3 100644
--- a/dln.c
+++ b/dln.c
@@ -1196,7 +1196,7 @@ aix_loaderror(const char *pathname)
 	ERRBUF_APPEND("\n");
     }
     errbuf[strlen(errbuf)-1] = '\0';	/* trim off last newline */
-    rb_loaderror(errbuf);
+    rb_loaderror("%s", errbuf);
     return;
 }
 #endif
diff --git a/version.h b/version.h
index 8453c579a4..84d46cfbda 100644
--- a/version.h
+++ b/version.h
@@ -1,5 +1,5 @@
 #define RUBY_VERSION "1.9.1"
-#define RUBY_PATCHLEVEL 354
+#define RUBY_PATCHLEVEL 355
 #define RUBY_VERSION_MAJOR 1
 #define RUBY_VERSION_MINOR 9
 #define RUBY_VERSION_TEENY 1