diff --git a/src/microdot_asyncio_websocket.py b/src/microdot_asyncio_websocket.py
index 43736c3..1e2b11a 100644
--- a/src/microdot_asyncio_websocket.py
+++ b/src/microdot_asyncio_websocket.py
@@ -17,7 +17,7 @@ class WebSocket(BaseWebSocket):
             opcode, payload = await self._read_frame()
             send_opcode, data = self._process_websocket_frame(opcode, payload)
             if send_opcode:  # pragma: no cover
-                await self.send(send_opcode, data)
+                await self.send(data, send_opcode)
             elif data:  # pragma: no branch
                 return data
 
diff --git a/src/microdot_websocket.py b/src/microdot_websocket.py
index 6aa8888..4ca0486 100644
--- a/src/microdot_websocket.py
+++ b/src/microdot_websocket.py
@@ -28,7 +28,7 @@ class WebSocket:
             opcode, payload = self._read_frame()
             send_opcode, data = self._process_websocket_frame(opcode, payload)
             if send_opcode:  # pragma: no cover
-                self.send(send_opcode, data)
+                self.send(data, send_opcode)
             elif data:  # pragma: no branch
                 return data