diff --git a/libraries/deno-wasm-mod.ts b/libraries/deno-wasm-mod.ts
index 0e16660..51027ea 100644
--- a/libraries/deno-wasm-mod.ts
+++ b/libraries/deno-wasm-mod.ts
@@ -15,7 +15,7 @@ async function execWasm(
     wasmArgs?: string[],
 ): never {
     const wasmCacheFileMeta = await fetchFileWithCache(wasmUrl);
-    const wasmCommandArgs = [wasmCacheFileMeta.cache_full_path, "--"];
+    const wasmCommandArgs: string[] = [wasmCacheFileMeta.cache_full_path, "--"];
     if (wasmArgs) {
         wasmCommandArgs.push(...wasmArgs);
     }
@@ -24,6 +24,7 @@ async function execWasm(
 }
 
 if (import.meta.main) {
+    // TODO not works? why?
     await execWasm(
         "wasmer",
         "https://cdn.hatter.ink/doc/8998_BE8D1CBE6106C77968183F226E2129B5/jq.wasm",