diff --git a/.gitlab/CI/build.gitlab-ci.yml b/.gitlab/CI/build.gitlab-ci.yml
index 58679eb72b..6d46bf0dcc 100644
--- a/.gitlab/CI/build.gitlab-ci.yml
+++ b/.gitlab/CI/build.gitlab-ci.yml
@@ -129,6 +129,7 @@ coverage:
 .tmacos-before-script: &tmacos-before-script
   - source $HOME/.cargo/env
   - cargo --version
+  - rustup toolchain list
   - export DISABLE_GIT_LFS_CHECK=true
   - export VELOREN_ASSETS="$(pwd)/assets"
   - echo "VELOREN_ASSETS=$VELOREN_ASSETS"
@@ -165,6 +166,7 @@ coverage:
     - .tmacos
   before_script:
     - *tmacos-before-script
+    - rustup target add aarch64-apple-darwin
     - export RUST_TARGET="aarch64-apple-darwin"
 
 # build on release or master