diff --git a/test/tests.py b/test/tests.py
index 1208848..4f8d2fa 100644
--- a/test/tests.py
+++ b/test/tests.py
@@ -239,7 +239,7 @@ def _():
 @test("joinmarket-yieldgenerator")
 def _():
     machine.wait_until_succeeds(
-        log_has_string("joinmarket-yieldgenerator", "Critical error updating blockheight.",)
+        log_has_string("joinmarket-yieldgenerator", "Critical error updating blockheight.")
     )