diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0eefcce..57241c6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -34,6 +34,7 @@ jobs:
         run: |
           curl https://sh.rustup.rs -sSf -y | sh
           brew install protobuf
+          rustup target add wasm32-unknown-unknown --toolchain stable-aarch64-apple-darwin
 
       # We've run into out-of-disk error when compiling Polkadot in the next step, so we free up some space this way.
       - name: Free Disk Space (Ubuntu)