diff --git a/.flake8 b/.flake8
index 1e5573d242..55ff702f09 100644
--- a/.flake8
+++ b/.flake8
@@ -2,7 +2,7 @@
 ignore =
     # E221: multiple spaces before operator
     E221,
-    # E241: multiple spaces after comma
+    # E241: multiple spaces after ':'
     E241,
     # E402: module level import not at top of file
     E402,
diff --git a/src/trezor/loop.py b/src/trezor/loop.py
index 5a24c645ad..f22a3bec77 100644
--- a/src/trezor/loop.py
+++ b/src/trezor/loop.py
@@ -204,7 +204,7 @@ class signal(Syscall):
     def __iter__(self):
         try:
             return (yield self)
-        except:
+        except:  # noqa: E722
             self.task = None
             raise