diff --git a/code/html/src/index.build.d.mts b/code/html/src/index.build.d.mts
new file mode 100644
index 0000000000..9a7c02aef3
--- /dev/null
+++ b/code/html/src/index.build.d.mts
@@ -0,0 +1,24 @@
+declare global {
+    var MODULE_OTA: boolean;
+    var MODULE_HA: boolean;
+    var MODULE_SNS: boolean;
+    var MODULE_GARLAND: boolean;
+    var MODULE_THERMOSTAT: boolean;
+    var MODULE_LIGHTFOX: boolean;
+    var MODULE_RELAY: boolean;
+    var MODULE_RFM69: boolean;
+    var MODULE_RFB: boolean;
+    var MODULE_CMD: boolean;
+    var MODULE_DBG: boolean;
+    var MODULE_API: boolean;
+    var MODULE_LED: boolean;
+    var MODULE_LIGHT: boolean;
+    var MODULE_SCH: boolean;
+    var MODULE_RPN: boolean;
+    var MODULE_DCZ: boolean;
+    var MODULE_TSPK: boolean;
+    var MODULE_CURTAIN: boolean;
+    var MODULE_LOCAL: boolean;
+}
+
+export {};
diff --git a/code/html/src/index.mjs b/code/html/src/index.mjs
index e75306452e..72f249f41b 100644
--- a/code/html/src/index.mjs
+++ b/code/html/src/index.mjs
@@ -1,3 +1,5 @@
+/// <reference path="index.build.d.mts" />
+
 /**
  * @typedef {function(string, any): void} Listener
  */