diff --git a/pkgs/applications/editors/vscode/extensions/default.nix b/pkgs/applications/editors/vscode/extensions/default.nix
index b49e0786f8e7..09df2534f2c8 100644
--- a/pkgs/applications/editors/vscode/extensions/default.nix
+++ b/pkgs/applications/editors/vscode/extensions/default.nix
@@ -1672,6 +1672,22 @@ let
         };
       };
 
+      egirlcatnip.adwaita-github-theme = buildVscodeMarketplaceExtension {
+        mktplcRef = {
+          name = "adwaita-github-theme";
+          publisher = "egirlcatnip";
+          version = "1.0.5";
+          hash = "sha256-OvonS6137ICRUV5Tx4gD3we8nrza6ZgnRSs2SxFiCjU=";
+        };
+        meta = {
+          description = "Adwaita VS Code theme with Github syntax highlighting";
+          downloadPage = "https://marketplace.visualstudio.com/items?itemName=egirlcatnip.adwaita-github-theme";
+          homepage = "https://github.com/egirlcatnip/adwaita-github-theme";
+          license = lib.licenses.gpl3;
+          maintainers = with lib.maintainers; [ thtrf ];
+        };
+      };
+
       elixir-lsp.vscode-elixir-ls = buildVscodeMarketplaceExtension {
         mktplcRef = {
           name = "elixir-ls";