diff --git a/.editorconfig b/.editorconfig
index 4d2220a..60f85d7 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -4,6 +4,9 @@ root = true
 end_of_line = lf
 insert_final_newline = true
 
+[*.py]
+max_line_length = 85
+
 [*.{py,rst,md}]
 indent_style = space
 indent_size = 4
diff --git a/aiotools/server.py b/aiotools/server.py
index 52fd806..c324ed6 100644
--- a/aiotools/server.py
+++ b/aiotools/server.py
@@ -253,7 +253,7 @@ def handle_stop_signal():
         mainloop.add_signal_handler(signum, handle_stop_signal)
 
     # build a reliable worker-to-main interrupt channel using a pipe
-    # (workers have no idea whether interrupt is enabled/disabled in the main program)
+    # (workers have no idea whether the main interrupt is enabled/disabled)
     def handle_child_interrupt(fd):
         child_idx = struct.unpack('i', os.read(fd, 4))[0]  # noqa
         log.debug(f'Child {child_idx} has interrupted the main program.')