diff --git a/nixos/modules/services/home-automation/home-assistant.nix b/nixos/modules/services/home-automation/home-assistant.nix
index c58a31539ed8..6ffe314d4574 100644
--- a/nixos/modules/services/home-automation/home-assistant.nix
+++ b/nixos/modules/services/home-automation/home-assistant.nix
@@ -192,7 +192,12 @@ in {
     };
 
     customComponents = mkOption {
-      type = types.listOf types.package;
+      type = types.listOf (
+        types.addCheck types.package (p: p.isHomeAssistantComponent or false) // {
+          name = "home-assistant-component";
+          description = "package that is a Home Assistant component";
+        }
+      );
       default = [];
       example = literalExpression ''
         with pkgs.home-assistant-custom-components; [
diff --git a/pkgs/servers/home-assistant/build-custom-component/default.nix b/pkgs/servers/home-assistant/build-custom-component/default.nix
index 17677e99d125..7f45ac6bcb00 100644
--- a/pkgs/servers/home-assistant/build-custom-component/default.nix
+++ b/pkgs/servers/home-assistant/build-custom-component/default.nix
@@ -39,5 +39,9 @@ home-assistant.python.pkgs.buildPythonPackage (
       packaging
     ] ++ (args.nativeCheckInputs or []);
 
-  } // builtins.removeAttrs args [ "nativeCheckInputs" ]
+    passthru = {
+      isHomeAssistantComponent = true;
+    } // args.passthru or { };
+
+  } // builtins.removeAttrs args [ "nativeCheckInputs" "passthru" ]
 )