diff --git a/ext/tk/tkutil/tkutil.c b/ext/tk/tkutil/tkutil.c
index 9014066905..09332a31d4 100644
--- a/ext/tk/tkutil/tkutil.c
+++ b/ext/tk/tkutil/tkutil.c
@@ -8,7 +8,7 @@
 
 ************************************************/
 
-#define TKUTIL_RELEASE_DATE "2005-03-15"
+#define TKUTIL_RELEASE_DATE "2005-06-14"
 
 #include "ruby.h"
 #include "rubysig.h"