diff --git a/.github/workflows/runtime_build_and_test.yml b/.github/workflows/runtime_build_and_test.yml
index 33881726f260c..9726a776200c7 100644
--- a/.github/workflows/runtime_build_and_test.yml
+++ b/.github/workflows/runtime_build_and_test.yml
@@ -14,7 +14,6 @@ env:
   UCACHER_DB_URI: "${{ secrets.UCACHER_DB_URI }}"
   UCACHER_STORAGE: s3://us-west-2/earthly-ucacher-directory--usw2-az1--x-s3
   UCACHER_INSTRUMENTER: ptrace
-  UCACHER_SHOW_IO: true
   FORCE_COLOR: 1
   LOG_LEVEL: debug