diff --git a/.gitlab/CI/build.gitlab-ci.yml b/.gitlab/CI/build.gitlab-ci.yml
index 58679eb72b..a151dbd77a 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"