diff --git a/pytest.ini b/pytest.ini
index 428fbcb..ca6ae59 100644
--- a/pytest.ini
+++ b/pytest.ini
@@ -1,4 +1,5 @@
 [pytest]
 markers =
     online: tests require a connection to the internet
-    reddit: tests require a connection to Reddit
\ No newline at end of file
+    reddit: tests require a connection to Reddit
+    slow: test is slow to run
\ No newline at end of file