diff --git a/index.js b/index.js
index 03b9362..5b378b6 100644
--- a/index.js
+++ b/index.js
@@ -1,5 +1,5 @@
 window.wasmhttp = {
-  register: async (wasm, { scope, base = '', swUrl = 'sw.js', argv = [] } = {}) => {
+  register: async (wasm, { scope, base = '', swUrl = 'sw.js', args = [] } = {}) => {
     const options = {}
     if (scope) options.scope = scope
     //FIXME register once (beware of changing scope ?)
@@ -9,7 +9,7 @@ window.wasmhttp = {
       type: 'wasmhttp.register',
       wasm,
       base,
-      argv,
+      args,
     })
   }
 }
diff --git a/sw.js b/sw.js
index 2c8aa3e..9e3891e 100644
--- a/sw.js
+++ b/sw.js
@@ -1,13 +1,13 @@
 importScripts('https://cdn.jsdelivr.net/gh/golang/go@go1.14.3/misc/wasm/wasm_exec.js')
 
 // FIXME use an options object with { env, argv }
-const startWasm = async (wasm, WASMHTTP_HANDLER_ID, WASMHTTP_PATH, argv) => {
+const startWasm = async (wasm, WASMHTTP_HANDLER_ID, WASMHTTP_PATH, args) => {
   const go = new Go()
   go.env = {
     WASMHTTP_HANDLER_ID,
     WASMHTTP_PATH,
   }
-  go.argv = argv
+  go.argv = [wasm, ...args]
   const { instance } = await WebAssembly.instantiateStreaming(fetch(wasm), go.importObject)
   return go.run(instance)
 }
@@ -52,7 +52,7 @@ addEventListener('message', async ({ data }) => {
 
   if (data.type !== 'wasmhttp.register') return
 
-  const { wasm, base, argv } = data
+  const { wasm, base, args } = data
 
   let path = new URL(registration.scope).pathname
   if (base && base !== '') path = `${trimEnd(path, '/')}/${trimStart(base, '/')}`
@@ -63,7 +63,7 @@ addEventListener('message', async ({ data }) => {
     const handlerId = `${nextHandlerId++}`
     const handler = new Promise(resolve => handlerResolvers[handlerId] = resolve)
 
-    startWasm(wasm, handlerId, path, argv)
+    startWasm(wasm, handlerId, path, args)
     running.add(key)
 
     // FIXME try catch