diff --git a/pyproject.toml b/pyproject.toml
index 1ce35bd9..38c4ba01 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,7 +3,7 @@ requires = ["setuptools>=42.0.0", "wheel"]
 build-backend = "setuptools.build_meta"
 
 [tool.pytest.ini_options]
-addopts = "-v --durations=10 --cov=micro_sam --cov-report xml:coverage.xml"
+addopts = "-v --durations=10 --cov=micro_sam --cov-report xml:coverage.xml --cov-report term-missing"
 markers = [
     "slow: marks tests as slow (deselect with '-m \"not slow\"')",
     "gui: marks GUI tests (deselect with '-m \"not gui\"')",