diff --git a/java_console/io/src/com/rusefi/io/serial/SerialIoStreamJSerialComm.java b/java_console/io/src/com/rusefi/io/serial/SerialIoStreamJSerialComm.java
index 5ec836df7b..5a506100a1 100644
--- a/java_console/io/src/com/rusefi/io/serial/SerialIoStreamJSerialComm.java
+++ b/java_console/io/src/com/rusefi/io/serial/SerialIoStreamJSerialComm.java
@@ -55,6 +55,7 @@ public class SerialIoStreamJSerialComm implements IoStream {
     @Override
     public void close() {
         isClosed = true;
+        sp.closePort();
     }
 
     @Override