diff --git a/installer/appx/filebot.l4j.ini b/installer/appx/filebot.l4j.ini
index 826d68e9..3dc55623 100644
--- a/installer/appx/filebot.l4j.ini
+++ b/installer/appx/filebot.l4j.ini
@@ -38,6 +38,10 @@
 # force Application User Model ID for Windows Store
 -Dnet.filebot.AppUserModelID=@{microsoft.application.name}
 
+# disable Java 9 module encapsulation
+--add-opens=java.base/java.lang=ALL-UNNAMED
+--add-opens=java.base/java.lang.invoke=ALL-UNNAMED
+
 # support JAVA_OPTS environment variable
 %JAVA_OPTS%