diff --git a/pkgs/by-name/su/sublime_syntax_convertor/Gemfile b/pkgs/by-name/su/sublime_syntax_convertor/Gemfile
new file mode 100644
index 000000000000..696a18bd74da
--- /dev/null
+++ b/pkgs/by-name/su/sublime_syntax_convertor/Gemfile
@@ -0,0 +1,3 @@
+source 'https://rubygems.org' do
+  gem 'sublime_syntax_convertor'
+end
diff --git a/pkgs/by-name/su/sublime_syntax_convertor/Gemfile.lock b/pkgs/by-name/su/sublime_syntax_convertor/Gemfile.lock
new file mode 100644
index 000000000000..82c833feb066
--- /dev/null
+++ b/pkgs/by-name/su/sublime_syntax_convertor/Gemfile.lock
@@ -0,0 +1,19 @@
+GEM
+  specs:
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    plist (3.7.1)
+    sublime_syntax_convertor (0.1.0)
+      plist
+
+PLATFORMS
+  ruby
+  x86_64-linux
+
+DEPENDENCIES
+  sublime_syntax_convertor!
+
+BUNDLED WITH
+   2.5.5
diff --git a/pkgs/by-name/su/sublime_syntax_convertor/gemset.nix b/pkgs/by-name/su/sublime_syntax_convertor/gemset.nix
new file mode 100644
index 000000000000..2412fea8a264
--- /dev/null
+++ b/pkgs/by-name/su/sublime_syntax_convertor/gemset.nix
@@ -0,0 +1,23 @@
+{
+  plist = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0b643i5b7b7galvlb2fc414ifmb78b5lsq47gnvhzl8m27dl559z";
+      type = "gem";
+    };
+    version = "3.7.1";
+  };
+  sublime_syntax_convertor = {
+    dependencies = ["plist"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0gg65xls9rl9df37njja5f7y6mm1cbnf9yafyy3j7cnkcszif43a";
+      type = "gem";
+    };
+    version = "0.1.0";
+  };
+}
diff --git a/pkgs/by-name/su/sublime_syntax_convertor/package.nix b/pkgs/by-name/su/sublime_syntax_convertor/package.nix
new file mode 100644
index 000000000000..b9be2f7b7056
--- /dev/null
+++ b/pkgs/by-name/su/sublime_syntax_convertor/package.nix
@@ -0,0 +1,13 @@
+{ lib,bundlerApp }:
+bundlerApp {
+  pname = "sublime_syntax_convertor";
+  gemdir = ./.;
+  exes = [ "sublime_syntax_convertor" ];
+
+  meta = {
+    description = "Converts tmLanguage to sublime-syntax";
+    homepage = "https://github.com/aziz/SublimeSyntaxConvertor/";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ laalsaas ];
+  };
+}