diff --git a/IDE/src/BuildContext.bf b/IDE/src/BuildContext.bf
index c473a4c2..d9549fbb 100644
--- a/IDE/src/BuildContext.bf
+++ b/IDE/src/BuildContext.bf
@@ -704,10 +704,10 @@ namespace IDE
 
 					compilerExePath.Append(@"/upstream/emscripten/emcc.bat");
 					//linkLine.Append(" c:\\Beef\\wasm\\BeefRT.a -s STRICT=1 -s USE_PTHREADS=1 -s ALIASING_FUNCTION_POINTERS=1 -s ASSERTIONS=0 -s DISABLE_EXCEPTION_CATCHING=0 -s DEMANGLE_SUPPORT=0 -s EVAL_CTORS=1 -s WASM=1 -s \"EXPORTED_FUNCTIONS=['_BeefMain','_BeefDone','_pthread_mutexattr_init','_pthread_mutex_init','_emscripten_futex_wake','_calloc','_sbrk']\"");
-					linkLine.Append("-s DISABLE_EXCEPTION_CATCHING=0 -s DEMANGLE_SUPPORT=0 -s WASM=1");
+					linkLine.Append("-s DISABLE_EXCEPTION_CATCHING=0 -s DEMANGLE_SUPPORT=0");
 
 					if (project.mWasmOptions.mEnableThreads)
-						linkLine.Append(" -s USE_PTHREADS=1");
+						linkLine.Append(" -pthread");
 
 					if (workspaceOptions.mEmitDebugInfo != .No)
 						linkLine.Append(" -g");