diff --git a/src/Build/BackEnd/Node/OutOfProcServerNode.cs b/src/Build/BackEnd/Node/OutOfProcServerNode.cs
index e6b09997578..d1360092d4d 100644
--- a/src/Build/BackEnd/Node/OutOfProcServerNode.cs
+++ b/src/Build/BackEnd/Node/OutOfProcServerNode.cs
@@ -455,26 +455,6 @@ public static TextWriter Create(Action<string> writeCallback)
                 return writer;
             }
 
-            private void TimerCallback(object? state)
-            {
-                if (_internalWriter.GetStringBuilder().Length > 0)
-                {
-                    _syncWriter.Flush();
-                }
-            }
-
-            protected override void Dispose(bool disposing)
-            {
-                if (disposing)
-                {
-                    _timer.Dispose();
-                    Flush();
-                    _internalWriter?.Dispose();
-                }
-
-                base.Dispose(disposing);
-            }
-
             public override void Flush()
             {
                 var sb = _internalWriter.GetStringBuilder();
@@ -495,12 +475,32 @@ public override void Write(char[] buffer, int index, int count)
                 _syncWriter.Write(buffer, index, count);
             }
 
-            public override void Write(string value)
+            public override void Write(string? value)
             {
                 _syncWriter.Write(value);
             }
 
             public override Encoding Encoding => _internalWriter.Encoding;
+
+            private void TimerCallback(object? state)
+            {
+                if (_internalWriter.GetStringBuilder().Length > 0)
+                {
+                    _syncWriter.Flush();
+                }
+            }
+
+            protected override void Dispose(bool disposing)
+            {
+                if (disposing)
+                {
+                    _timer.Dispose();
+                    Flush();
+                    _internalWriter?.Dispose();
+                }
+
+                base.Dispose(disposing);
+            }
         }
     }
 }