diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5aa8db02e8..7687ed161e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -271,12 +271,12 @@ jobs:
           - target: arm-unknown-linux-gnueabi
             host_os: ubuntu-22.04
 
-          # - target: arm64_32-apple-watchos
-          #   host_os: macos-15
-          #   rust_channel: nightly
-          #   mode: --release
-          #   # TODO: Run in the emulator.
-          #   cargo_options: --no-run -Z build-std
+          - target: arm64_32-apple-watchos
+            host_os: macos-15
+            rust_channel: nightly
+            mode: --release
+            # TODO: Run in the emulator.
+            cargo_options: --no-run -Z build-std
 
           - target: armv7-linux-androideabi
             host_os: ubuntu-22.04
diff --git a/src/cpu/aarch64/mod.rs b/src/cpu/aarch64/mod.rs
index afc50f928d..f29fb98115 100644
--- a/src/cpu/aarch64/mod.rs
+++ b/src/cpu/aarch64/mod.rs
@@ -35,7 +35,6 @@ mod abi_assumptions {
     // every other <64-bit parameter type to the corresponding 64-bit type.
     const _ASSUMED_POINTER_SIZE: usize =
         if cfg!(all(target_os = "watchos", target_pointer_width = "32")) {
-            todo!(); // Need to run tests for this ABI.
             #[allow(unreachable_code)]
             {
                 4