diff --git a/esphome/components/mcp4461/output/__init__.py b/esphome/components/mcp4461/output/__init__.py
index 49ff806f0f..2ab7ffac1b 100644
--- a/esphome/components/mcp4461/output/__init__.py
+++ b/esphome/components/mcp4461/output/__init__.py
@@ -47,11 +47,11 @@ async def to_code(config):
         config[CONF_CHANNEL],
     )
     if not config[CONF_TERMINAL_A]:
-        cg.add(parent.initialize_terminal_disabled(config[CONF_CHANNEL], 'a'))
+        cg.add(parent.initialize_terminal_disabled(config[CONF_CHANNEL], "a"))
     if not config[CONF_TERMINAL_B]:
-        cg.add(parent.initialize_terminal_disabled(config[CONF_CHANNEL], 'b'))
+        cg.add(parent.initialize_terminal_disabled(config[CONF_CHANNEL], "b"))
     if not config[CONF_TERMINAL_W]:
-        cg.add(parent.initialize_terminal_disabled(config[CONF_CHANNEL], 'w'))
+        cg.add(parent.initialize_terminal_disabled(config[CONF_CHANNEL], "w"))
     if CONF_INITIAL_VALUE in config:
         cg.add(
             parent.set_initial_value(config[CONF_CHANNEL], config[CONF_INITIAL_VALUE])