diff --git a/scripts/run-tests.sh b/scripts/run-tests.sh
index 5cad136c..8ca6fbbe 100755
--- a/scripts/run-tests.sh
+++ b/scripts/run-tests.sh
@@ -7,5 +7,5 @@ echo "Index: $PIP_INDEX_URL"
 python="${1:-python}"
 $python -m pip install -r requirements/tests.txt
 $python -m pip install --only-binary=:all: python-mbedtls
-$python -B -m pytest --color=yes
+$python -B -m pytest --color=yes tests/
 $python -B -m doctest README.rst