diff -r 372b161669e4 -r bee7acb57330 src/JavaManifestMFDialect.h
--- a/src/JavaManifestMFDialect.h	Sat Dec 12 14:42:36 2020 +0100
+++ b/src/JavaManifestMFDialect.h	Sat Dec 12 19:52:38 2020 +0100
@@ -31,6 +31,7 @@
 	void apply(INIWriter& writer) override {
 		writer.setOption(option::Dialect, dialect::JavaProperties);
 		writer.setOption(option::KeyValueSeparator, L": ");
+		writer.setOption(option::HierarchySeparator, L"-");
 	}
 
 };