diff --git a/pkgs/applications/editors/vscode/extensions/default.nix b/pkgs/applications/editors/vscode/extensions/default.nix
index 959fd9ffce62..6dbf3230db54 100644
--- a/pkgs/applications/editors/vscode/extensions/default.nix
+++ b/pkgs/applications/editors/vscode/extensions/default.nix
@@ -2288,6 +2288,16 @@ let
         };
       };
 
+      karunamurti.haml = buildVscodeMarketplaceExtension {
+        mktplcRef = {
+          name = "haml";
+          publisher = "karunamurti";
+          version = "1.4.1";
+          sha256 = "123cwfajakkg2pr0z4v289fzzlhwbxx9dvb5bjc32l3pzvbhq4gv";
+        };
+        meta.license = lib.licenses.mit;
+      };
+
       kddejong.vscode-cfn-lint =
         let
           inherit (python3Packages) cfn-lint pydot;