diff --git a/.circleci/config.yml b/.circleci/config.yml
index 8752da506d..5aae143e48 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -117,6 +117,8 @@ jobs:
             fi
 
             export CARGO_INCREMENTAL=0
+            export CACHEPOT_BUCKET=zenith-rust-cachepot
+            export RUSTC_WRAPPER=cachepot
             export AWS_ACCESS_KEY_ID="${CACHEPOT_AWS_ACCESS_KEY_ID}"
             export AWS_SECRET_ACCESS_KEY="${CACHEPOT_AWS_SECRET_ACCESS_KEY}"
             "${cov_prefix[@]}" mold -run cargo build $CARGO_FLAGS --bins --tests