diff --git a/src/common/haxe/ru/m/armageddon/core/connect/flash/FlashConnection.hx b/src/common/haxe/ru/m/armageddon/core/connect/flash/FlashConnection.hx
index b0e37d8..668cc73 100755
--- a/src/common/haxe/ru/m/armageddon/core/connect/flash/FlashConnection.hx
+++ b/src/common/haxe/ru/m/armageddon/core/connect/flash/FlashConnection.hx
@@ -70,7 +70,7 @@ class FlashConnection extends BaseConnection {
   }
 
   private function onSocketData(_):Void {
-    if (socket.bytesAvailable == 0) return;
+    if (socket.bytesAvailable < 4) return;
     var family = socket.readByte();
     var id = socket.readByte();
     var length = socket.readShort();