diff --git a/addon/chrome/content/minit/minit.js b/addon/chrome/content/minit/minit.js
index 1e3062db..89ae6543 100644
--- a/addon/chrome/content/minit/minit.js
+++ b/addon/chrome/content/minit/minit.js
@@ -325,7 +325,15 @@ var TMP_tabDNDObserver = {
      */
     function patchDragMethod(name, code) {
       if (Tabmix.isVersion(1320)) {
-        code.toCode(false, Tabmix.originalFunctions, `_tabmix_${name}`);
+        // @ts-expect-error - these constants are used by on_drop
+        // eslint-disable-next-line no-unused-vars
+        const GROUP_DROP_ACTION_CREATE = 0x1;
+        // @ts-expect-error
+        // eslint-disable-next-line no-unused-vars
+        const GROUP_DROP_ACTION_APPEND = 0x2;
+
+        const make = eval(Tabmix._localMakeCode);
+        Tabmix.originalFunctions[`_tabmix_${name}`] = make(null, code.value);
         Tabmix.originalFunctions[name] = gBrowser.tabContainer[name];
         gBrowser.tabContainer[name] = function(event) {
           const methodName = this.verticalMode ? name : `_tabmix_${name}`;