diff --git a/Core/GameEngine/Source/GameNetwork/ConnectionManager.cpp b/Core/GameEngine/Source/GameNetwork/ConnectionManager.cpp
index a98a0ddb1d4..6aed5ac39dc 100644
--- a/Core/GameEngine/Source/GameNetwork/ConnectionManager.cpp
+++ b/Core/GameEngine/Source/GameNetwork/ConnectionManager.cpp
@@ -154,14 +154,7 @@ static Bool hasValidTransferFileContent(const AsciiString& filePath, const Unsig
 	switch (fileType)
 	{
 	case TransferFileType_Map:
-	{
-		if (dataSize < 4 || memcmp(data, "CkMp", 4) != 0)
-		{
-			DEBUG_LOG(("Map file '%s' has invalid magic bytes.", filePath.str()));
-			return false;
-		}
 		break;
-	}
 
 	case TransferFileType_Ini:
 	{