jdk/src/jdk.jlink/share/classes/jdk/tools/jlink/internal/TaskHelper.java

@@ -194,11 +194,11 @@
             mainOptions.add(new PlugOption(false,
                     (task, opt, arg) -> {
                         // This option is handled prior
                         // to have the options parsed.
                     },
-                    "--plugins-modulepath"));
+                    "--plugin-module-path"));
             mainOptions.add(new PlugOption(true, (task, opt, arg) -> {
                 Path path = Paths.get(arg);
                 if (!Files.exists(path) || !Files.isDirectory(path)) {
                     throw newBadArgs("err.existing.image.must.exist");
                 }