diff --git a/tests/conftest.py b/tests/conftest.py
index 29e383996..ed617b854 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -172,7 +172,7 @@ def pytest_configure(config):
         try:
             disp = xvfbwrapper.Xvfb(width=800, height=600, colordepth=16)
             disp.start()
-        except FileNotFoundError:
+        except EnvironmentError:
             # We run without Xvfb if it's unavailable.
             pass
         else: