diff --git a/wasm/build-scripts/var.sh b/wasm/build-scripts/var.sh
index de1d1bee9ee9d..c838c966b7dab 100755
--- a/wasm/build-scripts/var.sh
+++ b/wasm/build-scripts/var.sh
@@ -53,7 +53,6 @@ FFMPEG_CONFIG_FLAGS_BASE=(
   --pkg-config-flags="--static"
   --nm="llvm-nm"
   --ar=emar
-  --as=llvm-as
   --ranlib=emranlib
   --cc=emcc
   --cxx=em++