diff --git a/tests/_build/README.md b/tests/_build/README.md
index e44cd53b..ca2c1dd1 100644
--- a/tests/_build/README.md
+++ b/tests/_build/README.md
@@ -15,7 +15,7 @@ On Linux, do `source ~/emsdk/emsdk_env.sh` before compiling.
 On Windows, you need to move into the build and run emsdk_env.bat from a command prompt using an absolute
 path like "C:\emsdk\emsdk_env.bat". Note that PowerShell doesn't work for me for some reason. Example:
 
-    emcc ../emscripten/emscripten.c -o bin/emscripten.html -sAUDIO_WORKLET=1 -sWASM_WORKERS=1 -sASYNCIFY -DMA_ENABLE_AUDIO_WORKLETS -Wall -Wextra
+    emcc ../emscripten/emscripten.c -o bin/emscripten.html -sAUDIO_WORKLET=1 -sWASM_WORKERS=1 -DMA_ENABLE_AUDIO_WORKLETS -Wall -Wextra
     
 If you output WASM it may not work when running the web page locally. To test you can run with something
 like this: