diff --git a/packages/java/20-valhalla+20-75/run b/packages/java/20-valhalla+20-75/run
index 505e4e4..2f062dd 100644
--- a/packages/java/20-valhalla+20-75/run
+++ b/packages/java/20-valhalla+20-75/run
@@ -4,4 +4,4 @@
 mv $1 $1.java
 filename=$1.java
 shift
-java $filename "$@"
+java --enable-preview $filename "$@"