diff --git a/.coveragerc b/.coveragerc
index f71b6b1a281..67b953445b6 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -6,9 +6,11 @@ exclude_lines =
     # Have to re-enable the standard pragma:
     pragma: no cover
 
-    # Don't complain if non-runnable code isn't run:
+    # Don't complain if non-runnable code isn't run
     if 0:
     if __name__ == .__main__.:
+    # Don't complain about code that shouldn't run
+    assert False
     # Don't complain about debug code
     if DEBUG: