diff --git a/src/libraries/System.Net.Sockets/src/System.Net.Sockets.csproj b/src/libraries/System.Net.Sockets/src/System.Net.Sockets.csproj
index 16413a42a31fdf..be7ecd6b615e6a 100644
--- a/src/libraries/System.Net.Sockets/src/System.Net.Sockets.csproj
+++ b/src/libraries/System.Net.Sockets/src/System.Net.Sockets.csproj
@@ -14,7 +14,7 @@
     <TargetPlatformIdentifier>$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)'))</TargetPlatformIdentifier>
     <GeneratePlatformNotSupportedAssemblyMessage Condition="'$(TargetPlatformIdentifier)' == 'browser' or '$(TargetPlatformIdentifier)' == ''">SR.SystemNetSockets_PlatformNotSupported</GeneratePlatformNotSupportedAssemblyMessage>
     <IsApplePlatform Condition="'$(TargetPlatformIdentifier)' == 'osx' or '$(TargetPlatformIdentifier)' == 'ios' or '$(TargetPlatformIdentifier)' == 'tvos'">true</IsApplePlatform>
-    <DefineConstants Condition="'$(IsApplePlatform)' == 'true'">$(DefineConstants);SYSTEM_NET_SOCKETS_APPLE_PLATFROM</DefineConstants>
+    <DefineConstants Condition="'$(IsApplePlatform)' == 'true'">$(DefineConstants);SYSTEM_NET_SOCKETS_APPLE_PLATFORM</DefineConstants>
   </PropertyGroup>
 
   <ItemGroup Condition="'$(TargetPlatformIdentifier)' != '' and '$(TargetPlatformIdentifier)' != 'browser'">
diff --git a/src/libraries/System.Net.Sockets/src/System/Net/Sockets/SafeSocketHandle.Unix.cs b/src/libraries/System.Net.Sockets/src/System/Net/Sockets/SafeSocketHandle.Unix.cs
index 1432559bae1adf..fd72a45df00663 100644
--- a/src/libraries/System.Net.Sockets/src/System/Net/Sockets/SafeSocketHandle.Unix.cs
+++ b/src/libraries/System.Net.Sockets/src/System/Net/Sockets/SafeSocketHandle.Unix.cs
@@ -26,7 +26,7 @@ private enum Flags : byte
             PreferInlineCompletions = 16,
             IsSocket = 32,
             IsDisconnected = 64,
-#if SYSTEM_NET_SOCKETS_APPLE_PLATFROM
+#if SYSTEM_NET_SOCKETS_APPLE_PLATFORM
             TfoEnabled = 128
 #endif
         }
@@ -70,7 +70,7 @@ internal bool IsSocket
             set => SetFlag(Flags.IsSocket, value);
         }
 
-#if SYSTEM_NET_SOCKETS_APPLE_PLATFROM
+#if SYSTEM_NET_SOCKETS_APPLE_PLATFORM
         internal bool TfoEnabled
         {
             get => (_flags & Flags.TfoEnabled) != 0;
@@ -98,7 +98,7 @@ internal void TransferTrackedState(SafeSocketHandle target)
             target.DualMode = DualMode;
             target.ExposedHandleOrUntrackedConfiguration = ExposedHandleOrUntrackedConfiguration;
             target.IsSocket = IsSocket;
-#if SYSTEM_NET_SOCKETS_APPLE_PLATFROM
+#if SYSTEM_NET_SOCKETS_APPLE_PLATFORM
             target.TfoEnabled = TfoEnabled;
 #endif
         }
diff --git a/src/libraries/System.Net.Sockets/src/System/Net/Sockets/SocketAsyncContext.Unix.cs b/src/libraries/System.Net.Sockets/src/System/Net/Sockets/SocketAsyncContext.Unix.cs
index 14040bcda2304b..828db07c658c26 100644
--- a/src/libraries/System.Net.Sockets/src/System/Net/Sockets/SocketAsyncContext.Unix.cs
+++ b/src/libraries/System.Net.Sockets/src/System/Net/Sockets/SocketAsyncContext.Unix.cs
@@ -1570,7 +1570,7 @@ public SocketError ConnectAsync(Memory<byte> socketAddress, Action<int, Memory<b
             SocketError errorCode;
             int observedSequenceNumber;
             _sendQueue.IsReady(this, out observedSequenceNumber);
-#if SYSTEM_NET_SOCKETS_APPLE_PLATFROM
+#if SYSTEM_NET_SOCKETS_APPLE_PLATFORM
             if (SocketPal.TryStartConnect(_socket, socketAddress, out errorCode, buffer.Span, _socket.TfoEnabled, out sentBytes))
 #else
             if (SocketPal.TryStartConnect(_socket, socketAddress, out errorCode, buffer.Span, false, out sentBytes)) // In Linux, we can figure it out as needed inside PAL.
diff --git a/src/libraries/System.Net.Sockets/src/System/Net/Sockets/SocketPal.Unix.cs b/src/libraries/System.Net.Sockets/src/System/Net/Sockets/SocketPal.Unix.cs
index 7921257af2172a..0cdb560aa3b2f1 100644
--- a/src/libraries/System.Net.Sockets/src/System/Net/Sockets/SocketPal.Unix.cs
+++ b/src/libraries/System.Net.Sockets/src/System/Net/Sockets/SocketPal.Unix.cs
@@ -1484,7 +1484,7 @@ public static unsafe SocketError SetSockOpt(SafeSocketHandle handle, SocketOptio
                 }
             }
 
-#if SYSTEM_NET_SOCKETS_APPLE_PLATFROM
+#if SYSTEM_NET_SOCKETS_APPLE_PLATFORM
             // macOS fails to even query it if socket is not actively listening.
             // To provide consistent platform experience we will track if
             // it was ret and we will use it later as needed.
@@ -1625,7 +1625,7 @@ public static unsafe SocketError GetSockOpt(SafeSocketHandle handle, SocketOptio
             int optLen = sizeof(int);
             Interop.Error err = Interop.Sys.GetSockOpt(handle, optionLevel, optionName, (byte*)&value, &optLen);
 
-#if SYSTEM_NET_SOCKETS_APPLE_PLATFROM
+#if SYSTEM_NET_SOCKETS_APPLE_PLATFORM
             // macOS fails to even query it if socket is not actively listening.
             // To provide consistent platform experience we will track if
             // it was set and we will use it later as needed.