diff --git a/ci/scripts/coverage.sh b/ci/scripts/coverage.sh
index 532fe8dd9..14c3688e0 100755
--- a/ci/scripts/coverage.sh
+++ b/ci/scripts/coverage.sh
@@ -128,10 +128,10 @@ function main() {
     TARGET_NANOARROW_PYTHON_DIR="${TARGET_NANOARROW_DIR}/python"
 
     pushd "${TARGET_NANOARROW_PYTHON_DIR}"
-    NANOARROW_PYTHON_COVERAGE=1 python -m pip install -e .
+    python -m pip install -Csetup-args="-Db_coverage=true" .
 
     # Run tests + coverage.py (generates .coverage with absolute file paths)
-    python -m pytest --cov ./src/nanoarrow
+    python -m pytest --cov tests/
 
     # Generate HTML report (file paths not important since it's just for viewing)
     python -m coverage html