diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 1f1e5d8156..286dd34b04 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -117,6 +117,34 @@ jobs:
           RUST_VERSION: stable
           WASM: wasm_simple
 
+  wasm_emscripten:
+    strategy:
+      matrix:
+        os: [macos-latest]
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Install rust
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          target: wasm32-unknown-emscripten
+          override: true
+
+      - name: Install node
+        uses: actions/setup-node@v1
+        with:
+          node-version: '12'
+
+      - name: Build and Test
+        run: bash ci/github.sh
+        env:
+          RUST_VERSION: stable
+          WASM: wasm_emscripten
+
   cross-targets:
     strategy:
       matrix:
diff --git a/ci/github.sh b/ci/github.sh
index ee62d46fb1..28ee6cb7bf 100755
--- a/ci/github.sh
+++ b/ci/github.sh
@@ -34,6 +34,8 @@ meaningful in the github actions feature matrix UI.
             test_wasm
         elif [[ ${WASM:-} == wasm_simple ]]; then
             test_wasm_simple
+        elif [[ ${WASM:-} == wasm_emscripten ]]; then
+            test_wasm_emscripten
         elif [[ ${CORE:-} == no_std ]]; then
             test_core
         elif [[ ${EXHAUSTIVE_TZ:-} == all_tzs ]]; then
@@ -112,4 +114,8 @@ test_wasm_simple() {
     fi
 }
 
+test_wasm_emscripten() {
+    runt cargo build --target wasm32-unknown-emscripten
+}
+
 main "$@"