diff --git a/klippy/extras/bus.py b/klippy/extras/bus.py
index 66b8330e..033e9341 100644
--- a/klippy/extras/bus.py
+++ b/klippy/extras/bus.py
@@ -223,9 +223,6 @@ class MCU_I2C:
             return
         self.i2c_write_cmd.send_wait_ack([self.oid, data],
                                          minclock=minclock, reqclock=reqclock)
-    def i2c_write_wait_ack(self, data, minclock=0, reqclock=0):
-        self.i2c_write_cmd.send_wait_ack([self.oid, data],
-                                minclock=minclock, reqclock=reqclock)
     def i2c_read(self, write, read_len, retry=True):
         return self.i2c_read_cmd.send([self.oid, write, read_len], retry)