diff --git a/build.java b/build.java
index c9ee43d..4931c17 100644
--- a/build.java
+++ b/build.java
@@ -390,6 +390,8 @@ private static void patchNativeImageLauncher(Path nativeImage, String mandrelVer
                 logger.debugf("launcherMatcher.group(1): %s", launcherMatcher.group(1));
                 logger.debugf("launcherMatcher.group(2): %s", launcherMatcher.group(2));
                 final String launcherLine = launcherMatcher.group(1) +
+                    " -XX:MaxRAM=256m" +
+                    " -XX:MaxRAMPercentage=80" +
                     " -Dorg.graalvm.version=\"" + mandrelVersion + "\"" +
                     " -Dorg.graalvm.vendorversion=\"Mandrel-" + mandrelVersion + "\"" +
                     " -Dorg.graalvm.vendor=\"" + (vendor != null ? vendor : defaultVendor) + "\"" +