diff --git a/ci/scripts/check-dylint.sh b/ci/scripts/check-dylint.sh
index 22f3e11b53da7..9101215e93cfb 100755
--- a/ci/scripts/check-dylint.sh
+++ b/ci/scripts/check-dylint.sh
@@ -4,7 +4,7 @@
 set -euo pipefail
 
 source ci/scripts/common.sh
-unset RUSTC_WRAPPER
+unset RUSTC_WRAPPER # disable sccache, see https://github.com/mozilla/sccache/issues/861
 
 echo "--- Run dylint check (dev, all features)"
 # Instead of `-D warnings`, we only deny warnings from our own lints. This is because...