diff --git a/packages/wasm-split/wasm-split-cli/src/__wasm_split.js b/packages/wasm-split/wasm-split-cli/src/__wasm_split.js
index a3d65412a6..e5317dbc66 100644
--- a/packages/wasm-split/wasm-split-cli/src/__wasm_split.js
+++ b/packages/wasm-split/wasm-split-cli/src/__wasm_split.js
@@ -7,7 +7,7 @@ export function makeLoad(url, deps, fusedImports, initIt) {
     if (alreadyLoaded) return;
     try {
       const response = await fetch(url);
-      const initSync = initIt || window.__wasm_split_main_initSync;
+      const initSync = initIt || globalThis.__wasm_split_main_initSync;
       const mainExports = initSync(undefined, undefined);
 
       let imports = {