diff --git a/jelly-bf-sync.js b/jelly-bf-sync.js
index 37440c2..4c5ce2a 100644
--- a/jelly-bf-sync.js
+++ b/jelly-bf-sync.js
@@ -1,6 +1,6 @@
 var JellyBFSync={
     compile:function(str,options){
-        return WebAssembly.Module(JellyBFCompiler.compile(str,options));
+        return new WebAssembly.Module(JellyBFCompiler.compile(str,options));
     },
     execute:function(module,inputuint8array,options){
         options.eof_value=options.eof_value||0;
@@ -17,7 +17,7 @@ var JellyBFSync={
         var put_output=function(byte){
             outputdata.push(byte);
         };
-        var instance=WebAssembly.Instance(module,{
+        var instance=new WebAssembly.Instance(module,{
             interaction:{
                 input:get_input,
                 output:put_output
@@ -70,7 +70,7 @@ var JellyBFSync={
             Atomics.store(outputwaitint32array,WaitArrayId.TERMINATED_FLAG,1);
             Atomics.store(outputwaitint32array,WaitArrayId.WRITE_HEAD,output_write_head+1);
         };
-        var instance=WebAssembly.Instance(module,{
+        var instance=new WebAssembly.Instance(module,{
             interaction:{
                 input:get_input,
                 output:put_output
diff --git a/jelly-bf-worker.max.js b/jelly-bf-worker.max.js
index 67f9c90..07c8351 100644
--- a/jelly-bf-worker.max.js
+++ b/jelly-bf-worker.max.js
@@ -1542,7 +1542,7 @@ var JellyBF_CloseAndAttemptUnrollLoop = function(codeChunks, options) {
 
 var JellyBFSync = {
     compile: function(str, options) {
-        return WebAssembly.Module(JellyBFCompiler.compile(str, options));
+        return new WebAssembly.Module(JellyBFCompiler.compile(str, options));
     },
     execute: function(module, inputuint8array, options) {
         options.eof_value = options.eof_value || 0;
@@ -1558,7 +1558,7 @@ var JellyBFSync = {
         var put_output = function(byte) {
             outputdata.push(byte);
         };
-        var instance = WebAssembly.Instance(module, {
+        var instance = new WebAssembly.Instance(module, {
             interaction: {
                 input: get_input,
                 output: put_output
@@ -1609,7 +1609,7 @@ var JellyBFSync = {
             Atomics.store(outputwaitint32array, WaitArrayId.TERMINATED_FLAG, 1);
             Atomics.store(outputwaitint32array, WaitArrayId.WRITE_HEAD, output_write_head + 1);
         };
-        var instance = WebAssembly.Instance(module, {
+        var instance = new WebAssembly.Instance(module, {
             interaction: {
                 input: get_input,
                 output: put_output
diff --git a/main.js b/main.js
index e11b850..79b6156 100644
--- a/main.js
+++ b/main.js
@@ -31,8 +31,7 @@ window.addEventListener("load",function(){
     };
     
     var compile=function(worker,sourcecode,options,callback){
-        var module=new Uint8Array(100);
-        worker.postMessage({type:"compile",sourcecode:sourcecode,options:options,module:module},[module.buffer]);
+        worker.postMessage({type:"compile",sourcecode:sourcecode,options:options});
         wait_for_message(worker,"compiled",function(message){
             callback();
         });