diff --git a/pkgs/servers/home-assistant/custom-lovelace-modules/default.nix b/pkgs/servers/home-assistant/custom-lovelace-modules/default.nix
index 6271c3681bb1d..80c92cded6b31 100644
--- a/pkgs/servers/home-assistant/custom-lovelace-modules/default.nix
+++ b/pkgs/servers/home-assistant/custom-lovelace-modules/default.nix
@@ -31,6 +31,8 @@
 
   rmv-card = callPackage ./rmv-card { };
 
+  sankey-chart = callPackage ./sankey-chart { };
+
   template-entity-row = callPackage ./template-entity-row { };
 
   universal-remote-card = callPackage ./universal-remote-card { };
diff --git a/pkgs/servers/home-assistant/custom-lovelace-modules/sankey-chart/default.nix b/pkgs/servers/home-assistant/custom-lovelace-modules/sankey-chart/default.nix
new file mode 100644
index 0000000000000..d9b1c25b1cc5f
--- /dev/null
+++ b/pkgs/servers/home-assistant/custom-lovelace-modules/sankey-chart/default.nix
@@ -0,0 +1,37 @@
+{
+  lib,
+  buildNpmPackage,
+  fetchFromGitHub,
+}:
+
+buildNpmPackage rec {
+  pname = "sankey-chart";
+  version = "3.5.0";
+
+  src = fetchFromGitHub {
+    owner = "MindFreeze";
+    repo = "ha-sankey-chart";
+    rev = "v${version}";
+    hash = "sha256-cQZPWyXMwJZAhsWYtNLGXpelvmeWlyQbaoqYREwfeNg=";
+  };
+
+  npmDepsHash = "sha256-GXhxMq0h/AmLGIiq2N/hSi+4O9uNDPawaSdPmJ8OyX8=";
+
+  installPhase = ''
+    runHook preInstall
+
+    mkdir $out/
+    cp -v dist/ha-sankey-chart.js $out/sankey-chart.js
+
+    runHook postInstall
+  '';
+
+  meta = {
+    description = "Home Assistant lovelace card to display a sankey chart.";
+    homepage = "https://github.com/MindFreeze/ha-sankey-chart";
+    changelog = "https://github.com/MindFreeze/ha-sankey-chart/blob/${src.rev}/CHANGELOG.md";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ hexa ];
+    platforms = lib.platforms.all;
+  };
+}