diff --git a/build/windows/launcher/arduino.l4j.ini b/build/windows/launcher/arduino.l4j.ini
index e595cea936c..648edfbcc56 100644
--- a/build/windows/launcher/arduino.l4j.ini
+++ b/build/windows/launcher/arduino.l4j.ini
@@ -1,2 +1,3 @@
 -Xms128M
 -Xmx512M
+-Dfile.encoding=UTF8