diff --git a/ChangeLog b/ChangeLog
index eaecb649a2..39a2e4f9cf 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Tue Jun 30 11:05:59 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* dln.c (dln_find_1): fixed index overrun.
+
 Mon Jun 29 18:55:55 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* dln.c (dln_find_1): fix for files with dots.  [ruby-dev:38588]
diff --git a/dln.c b/dln.c
index 23df91aaa4..8826e94c5f 100644
--- a/dln.c
+++ b/dln.c
@@ -1564,8 +1564,8 @@ dln_find_1(const char *fname, const char *path, char *fbuf, int size,
 	}
     }
     if (ext) {
-	for (j = 0; STRCASECMP(ext, extension[j]); j++) {
-	    if (j == sizeof(extension) / sizeof(extension[0])) {
+	for (j = 0; STRCASECMP(ext, extension[j]); ) {
+	    if (++j == sizeof(extension) / sizeof(extension[0])) {
 		ext = 0;
 		break;
 	    }
diff --git a/version.h b/version.h
index 994f6caeac..88a320b2d8 100644
--- a/version.h
+++ b/version.h
@@ -1,6 +1,6 @@
 #define RUBY_VERSION "1.9.1"
 #define RUBY_RELEASE_DATE "2009-07-12"
-#define RUBY_PATCHLEVEL 210
+#define RUBY_PATCHLEVEL 211
 #define RUBY_VERSION_MAJOR 1
 #define RUBY_VERSION_MINOR 9
 #define RUBY_VERSION_TEENY 1