diff --git a/emsdk_build.sh b/emsdk_build.sh
index 704f43cfb..83bee5030 100755
--- a/emsdk_build.sh
+++ b/emsdk_build.sh
@@ -6,5 +6,5 @@ rm -rf js_build
 mkdir -p js_build
 cd js_build
 
-emcmake cmake -G "Unix Makefiles" ..
+emcmake cmake -G "Unix Makefiles" -DBUILD_BLS_TESTS=0 -DBUILD_BLS_BENCHMARKS=0 ..
 emmake make
diff --git a/js_build.sh b/js_build.sh
index 29928af4a..b59dc69da 100755
--- a/js_build.sh
+++ b/js_build.sh
@@ -5,5 +5,5 @@ git submodule update --init --recursive
 mkdir js_build
 cd js_build
 
-cmake ../ -DCMAKE_TOOLCHAIN_FILE=$(dirname $(realpath $(which emcc)))/cmake/Modules/Platform/Emscripten.cmake
+cmake ../ -DBUILD_BLS_TESTS=0 -DBUILD_BLS_BENCHMARKS=0 -DCMAKE_TOOLCHAIN_FILE=$(dirname $(realpath $(which emcc)))/cmake/Modules/Platform/Emscripten.cmake
 cmake --build . --