diff --git a/pyflakes/api.py b/pyflakes/api.py
index 69d95139..7fb40933 100644
--- a/pyflakes/api.py
+++ b/pyflakes/api.py
@@ -128,7 +128,7 @@ def checkRecursive(paths, reporter):
     return warnings
 
 
-def _exitOnSignal(sigName, message):
+def _exitOnSignal(sigName, message):  # pragma: no cover  # platform specific
     """Handles a signal with sys.exit.
 
     Some of these signals (SIGPIPE, for example) don't exist or are invalid on
diff --git a/setup.cfg b/setup.cfg
index b8af1c23..a6103ab6 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -10,4 +10,3 @@ plugins = covdefaults
 [coverage:report]
 exclude_lines =
     ^ +@skip\(.*$
-fail_under = 98