diff --git a/.github/workflows/build-ffi.yml b/.github/workflows/build-ffi.yml
index 5428365e..10d2eefb 100644
--- a/.github/workflows/build-ffi.yml
+++ b/.github/workflows/build-ffi.yml
@@ -12,6 +12,8 @@ jobs:
         rust: [ stable ]
     env:
       pact_do_not_track: true
+      # Without this fails to compile on Windows
+      AWS_LC_SYS_NO_ASM: 1
     steps:
       - uses: actions/checkout@v3
       - run: rustc --version || true
diff --git a/rust/scripts/ci-musl-build.sh b/rust/scripts/ci-musl-build.sh
index d1f01575..6fe6e0f8 100755
--- a/rust/scripts/ci-musl-build.sh
+++ b/rust/scripts/ci-musl-build.sh
@@ -2,6 +2,9 @@
 
 set -ex
 
+# Without this fails to compile on Windows
+export AWS_LC_SYS_NO_ASM=1
+
 rustc --print cfg
 cargo build
 cargo test