diff --git a/scripts/tests.sh b/scripts/tests.sh
index b3f0170e..3824cc6d 100755
--- a/scripts/tests.sh
+++ b/scripts/tests.sh
@@ -6,6 +6,7 @@ DOCKER_REPOSITORY="$1"
 CODE_COVERAGE="$2"
 
 touch "$PWD/coverage.txt"
+chmod 777 "$PWD/coverage.txt"
 docker build -t "$DOCKER_REPOSITORY/gotenberg:tests" -f build/tests/Dockerfile .
 
 if [ "$CODE_COVERAGE" = "1" ]; then