diff --git a/jdk/test/TEST.ROOT b/jdk/test/TEST.ROOT
index f79fb4e6e5d..faa62b1c846 100644
--- a/jdk/test/TEST.ROOT
+++ b/jdk/test/TEST.ROOT
@@ -35,3 +35,6 @@ external.lib.roots = ../../
 
 # Use new module options
 useNewOptions=true
+
+# Use --patch-module instead of -Xmodule:
+useNewPatchModule=true