Index: trunk/native/windows/win-jpackage.sh
===================================================================
--- trunk/native/windows/win-jpackage.sh	(revision 18809)
+++ trunk/native/windows/win-jpackage.sh	(revision 18813)
@@ -47,5 +47,7 @@
 for type in exe msi
 do
-    jpackage "$JPACKAGEOPTIONS" -n "JOSM" --input dist --main-jar josm-custom.jar \
+    # $JPACKAGEOPTIONS is supposed to be expanded
+    # shellcheck disable=SC2086
+    jpackage $JPACKAGEOPTIONS -n "JOSM" --input dist --main-jar josm-custom.jar \
     --main-class org.openstreetmap.josm.gui.MainApplication \
     --icon ./native/windows/logo.ico --type $type --dest app \