diff --git a/update_formulaes.py b/update_formulaes.py
index 47685f3..8c457fd 100644
--- a/update_formulaes.py
+++ b/update_formulaes.py
@@ -41,7 +41,7 @@ def fetch_targets_from_latest_release():
             if target not in targets:
                 targets[target] = {
                     "version": version,
-                    "name": target.title().replace("-", ""),
+                    "name": target.title().replace("-", "").replace("_", ""),
                     "description": f"{target} Toolchain",
                 }
             if arch == "aarch64":
diff --git a/x86_64-unknown-linux-gnu.rb b/x86_64-unknown-linux-gnu.rb
index 597ca51..ad64ec7 100644
--- a/x86_64-unknown-linux-gnu.rb
+++ b/x86_64-unknown-linux-gnu.rb
@@ -1,4 +1,4 @@
-class X86_64UnknownLinuxGnu < Formula
+class X8664UnknownLinuxGnu < Formula
   desc "x86_64-unknown-linux-gnu Toolchain"
   homepage "https://github.com/messense/homebrew-macos-cross-toolchains"
   license "GPL-3.0-or-later" => { with: "GCC-exception-3.1" }
diff --git a/x86_64-unknown-linux-musl.rb b/x86_64-unknown-linux-musl.rb
index 5203a1b..2fbf31f 100644
--- a/x86_64-unknown-linux-musl.rb
+++ b/x86_64-unknown-linux-musl.rb
@@ -1,4 +1,4 @@
-class X86_64UnknownLinuxMusl < Formula
+class X8664UnknownLinuxMusl < Formula
   desc "x86_64-unknown-linux-musl Toolchain"
   homepage "https://github.com/messense/homebrew-macos-cross-toolchains"
   license "GPL-3.0-or-later" => { with: "GCC-exception-3.1" }