diff --git a/test/unittests/test_morphology.py b/test/unittests/test_morphology.py
index c0aa6e37..e17f4454 100644
--- a/test/unittests/test_morphology.py
+++ b/test/unittests/test_morphology.py
@@ -21,6 +21,7 @@
     have_neuron = True
 except ModuleNotFoundError:
     have_neuron = False
+import pytest
 
 
 morph_data = """# test morphology