diff --git a/circle-mlir/infra/overlay/prepare-venv b/circle-mlir/infra/overlay/prepare-venv
index da5f5f7e249..6d813063e8a 100644
--- a/circle-mlir/infra/overlay/prepare-venv
+++ b/circle-mlir/infra/overlay/prepare-venv
@@ -34,7 +34,7 @@ fi
 
 set -e
 
-DRIVER_PATH="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+DRIVER_PATH="$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null && pwd)"
 if [[ -z "$VENV_NAME" ]]; then
   VENV_NAME="venv"
 fi
diff --git a/circle-mlir/infra/tools/gen-coverage-report b/circle-mlir/infra/tools/gen-coverage-report
index 8d120dd0ba0..e0e8b233840 100644
--- a/circle-mlir/infra/tools/gen-coverage-report
+++ b/circle-mlir/infra/tools/gen-coverage-report
@@ -6,7 +6,7 @@
 #   COVERAGE_PATH  : path where coverage report is generated,
 #                    default is ${PROJECT_PATH}/${COVERAGE_RPATH}
 
-PROJECT_PATH="$(cd $(dirname ${BASH_SOURCE[0]})/../.. && pwd)"
+PROJECT_PATH="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." >/dev/null && pwd)"
 
 # Set BUILD_WORKSPACE_RPATH with default 'build/coverage' if not set
 BUILD_WORKSPACE_RPATH="${BUILD_WORKSPACE_RPATH:-build/coverage}"