diff --git a/render-wasm/build b/render-wasm/build
index b6ed61b58..857c5b3c6 100755
--- a/render-wasm/build
+++ b/render-wasm/build
@@ -6,11 +6,10 @@ else
     export _BUILD_MODE=${1:-debug};
 fi
 
-export EMSDK_QUIET=1
 export EMCC_CFLAGS="--no-entry -s ERROR_ON_UNDEFINED_SYMBOLS=0 -s MAX_WEBGL_VERSION=2 -s MODULARIZE=1 -s EXPORT_NAME=createRustSkiaModule -s EXPORTED_RUNTIME_METHODS=GL -s ENVIRONMENT=web -s EXPORT_ES6=1 -sMODULARIZE"
 
-source /usr/local/emsdk/emsdk_env.sh;
-source /usr/local/cargo/env
+EMSDK_QUIET=1 . /usr/local/emsdk/emsdk_env.sh;
+. /usr/local/cargo/env
 
 export EM_CACHE="/tmp/emsdk_cache";