fix filename

1 files changed, 1 insertions, 1 deletions

diff --git a/tool/releng/gen-release-note.rb b/tool/releng/gen-release-note.rb
index 559ddeba1b..5afd11b796 100755
--- a/tool/releng/gen-release-note.rb
+++ b/tool/releng/gen-release-note.rb
@@ -30,7 +30,7 @@ confirm_w_r_l_o_wd
 
   # Write release note article
   path = Time.parse(src[/^date: (.*)/, 1]).
-    strftime("./#{src[/^lang: (\w+)/, 1]}/news/_posts/%Y-%m-%d-ruby-#{version}-released.md")
+    strftime("./#{src[/^lang: (\w+)/, 1]}/news/_posts/%Y-%m-%d-ruby-#{version.tr('.', '-')}-released.md")
   puts path
   File.write(path, src)
 end