diff --git a/src/libraries/System.Net.WebSockets/src/System/Net/WebSockets/ManagedWebSocket.cs b/src/libraries/System.Net.WebSockets/src/System/Net/WebSockets/ManagedWebSocket.cs
index 553a254c2770d4..ba8f5894aa5696 100644
--- a/src/libraries/System.Net.WebSockets/src/System/Net/WebSockets/ManagedWebSocket.cs
+++ b/src/libraries/System.Net.WebSockets/src/System/Net/WebSockets/ManagedWebSocket.cs
@@ -324,8 +324,8 @@ public override ValueTask SendAsync(ReadOnlyMemory<byte> buffer, WebSocketMessag
                 return ValueTask.FromException(exc);
             }
 
-            bool endOfMessage = messageFlags.HasFlag(WebSocketMessageFlags.EndOfMessage);
-            bool disableCompression = messageFlags.HasFlag(WebSocketMessageFlags.DisableCompression);
+            bool endOfMessage = (messageFlags & WebSocketMessageFlags.EndOfMessage) != 0;
+            bool disableCompression = (messageFlags & WebSocketMessageFlags.DisableCompression) != 0;
             MessageOpcode opcode;
 
             if (_lastSendWasFragment)
diff --git a/src/libraries/System.Net.WebSockets/src/System/Net/WebSockets/WebSocket.cs b/src/libraries/System.Net.WebSockets/src/System/Net/WebSockets/WebSocket.cs
index ce47b894d32c79..703f44b8b7705b 100644
--- a/src/libraries/System.Net.WebSockets/src/System/Net/WebSockets/WebSocket.cs
+++ b/src/libraries/System.Net.WebSockets/src/System/Net/WebSockets/WebSocket.cs
@@ -60,7 +60,7 @@ public virtual ValueTask SendAsync(ReadOnlyMemory<byte> buffer, WebSocketMessage
 
         public virtual ValueTask SendAsync(ReadOnlyMemory<byte> buffer, WebSocketMessageType messageType, WebSocketMessageFlags messageFlags, CancellationToken cancellationToken = default)
         {
-            return SendAsync(buffer, messageType, messageFlags.HasFlag(WebSocketMessageFlags.EndOfMessage), cancellationToken);
+            return SendAsync(buffer, messageType, (messageFlags & WebSocketMessageFlags.EndOfMessage) != 0, cancellationToken);
         }
 
         private async ValueTask SendWithArrayPoolAsync(
diff --git a/src/libraries/System.Net.WebSockets/src/System/Net/WebSockets/WebSocketStateHelper.cs b/src/libraries/System.Net.WebSockets/src/System/Net/WebSockets/WebSocketStateHelper.cs
index 1de3e3333ab313..76f9147a2af7d6 100644
--- a/src/libraries/System.Net.WebSockets/src/System/Net/WebSockets/WebSocketStateHelper.cs
+++ b/src/libraries/System.Net.WebSockets/src/System/Net/WebSockets/WebSocketStateHelper.cs
@@ -16,7 +16,7 @@ internal static class WebSocketStateHelper
         /// <summary>Valid states to be in when calling CloseAsync.</summary>
         internal const ManagedWebSocketStates ValidCloseStates = ManagedWebSocketStates.Open | ManagedWebSocketStates.CloseReceived | ManagedWebSocketStates.CloseSent;
 
-        internal static bool IsValidSendState(WebSocketState state) => ValidSendStates.HasFlag(ToFlag(state));
+        internal static bool IsValidSendState(WebSocketState state) => (ValidSendStates & ToFlag(state)) != 0;
 
         internal static void ThrowIfInvalidState(WebSocketState currentState, bool isDisposed, Exception? innerException, ManagedWebSocketStates validStates)
         {