diff --git a/installer/appx/filebot.l4j.ini b/installer/appx/filebot.l4j.ini
index 1afa8014..9875a9ba 100644
--- a/installer/appx/filebot.l4j.ini
+++ b/installer/appx/filebot.l4j.ini
@@ -34,5 +34,8 @@
 # force Application User Model ID for Windows Store
 -Dnet.filebot.AppUserModelID=@{microsoft.application.name}
 
+# support JAVA_OPTS environment variable
+%JAVA_OPTS%
+
 # support FILEBOT_OPTS environment variable
 %FILEBOT_OPTS%
diff --git a/installer/appx/filebot.launcher.l4j.ini b/installer/appx/filebot.launcher.l4j.ini
index 4196f5ae..daca65a6 100644
--- a/installer/appx/filebot.launcher.l4j.ini
+++ b/installer/appx/filebot.launcher.l4j.ini
@@ -34,5 +34,8 @@
 # force Application User Model ID for Windows Store
 -Dnet.filebot.AppUserModelID=@{microsoft.application.name}
 
+# support JAVA_OPTS environment variable
+%JAVA_OPTS%
+
 # support FILEBOT_OPTS environment variable
 %FILEBOT_OPTS%