diff --git a/types/types.go b/types/types.go
index 4920a1a..c76f74e 100644
--- a/types/types.go
+++ b/types/types.go
@@ -28,6 +28,24 @@ func (le LemmyError) Error() string {
 }
 
 type LemmyWebSocketMsg struct {
-	Op   UserOperation   `json:"op"`
+	Op   string          `json:"op"`
 	Data json.RawMessage `json:"data"`
 }
+
+// IsOneOf checks if the message is one of the given operation.
+// Operations must be of type UserOperation or UserOperationCrud.
+func (msg LemmyWebSocketMsg) IsOneOf(ops ...any) bool {
+	for _, op := range ops {
+		switch op := op.(type) {
+		case UserOperation:
+			if string(op) == msg.Op {
+				return true
+			}
+		case UserOperationCrud:
+			if string(op) == msg.Op {
+				return true
+			}
+		}
+	}
+	return false
+}
diff --git a/websocket.go b/websocket.go
index 9394e1e..c9e4df1 100644
--- a/websocket.go
+++ b/websocket.go
@@ -99,7 +99,7 @@ func (c *WSClient) Request(op types.UserOperation, data any) error {
 	}
 
 	return c.conn.WriteJSON(types.LemmyWebSocketMsg{
-		Op:   op,
+		Op:   string(op),
 		Data: d,
 	})
 }