diff --git a/build/Main.cs b/build/Main.cs
index 59dcc99..e175874 100644
--- a/build/Main.cs
+++ b/build/Main.cs
@@ -13,7 +13,6 @@
 const string packOutput = "nuget";
 const string protosDir = "protos";
 const string project = "Qdrant.Client";
-const string grpcNamespace = "Qdrant.Client.Grpc";
 
 var doc = XDocument.Load("Directory.Build.props");
 var qdrantVersion = doc.Descendants(XName.Get("QdrantVersion", "http://schemas.microsoft.com/developer/msbuild/2003"))
@@ -107,25 +106,6 @@
 			}
 			File.WriteAllLines(file, contents);
 		}
-
-		// add csharp namespace to qdrant package proto files if they don't contain one
-		foreach (var file in Directory.EnumerateFiles(protosTagDir))
-		{
-			var contents = File.ReadAllLines(file).ToList();
-			if (contents.Any(line => line.Contains("option csharp_namespace")))
-				continue;
-
-			for (var i = 0; i < contents.Count; i++)
-			{
-				if (contents[i].StartsWith("package qdrant"))
-				{
-					contents.Insert(i + 1, $"option csharp_namespace = \"{grpcNamespace}\";");
-					break;
-				}
-			}
-
-			File.WriteAllLines(file, contents);
-		}
 	});
 
 	Target(Format, [Restore], () =>