--- old/src/jdk.incubator.jpackage/windows/classes/jdk/incubator/jpackage/internal/WixSourcesBuilder.java	2019-12-13 14:31:43.733636400 -0500
+++ new/src/jdk.incubator.jpackage/windows/classes/jdk/incubator/jpackage/internal/WixSourcesBuilder.java	2019-12-13 14:31:40.206810300 -0500
@@ -477,7 +477,7 @@
                 xml.writeStartElement("Verb");
                 xml.writeAttribute("Id", "open");
                 xml.writeAttribute("Command", "Open");
-                xml.writeAttribute("Argument", "%1");
+                xml.writeAttribute("Argument", "\"%1\"");
                 xml.writeAttribute("TargetFile", Id.File.of(fa.launcherPath));
                 xml.writeEndElement(); // <Verb>