Fixed: typo -testRunFactory
diff --git a/src/main/java/org/testng/CommandLineArgs.java b/src/main/java/org/testng/CommandLineArgs.java
index eaa4f43..9f14bc4 100644
--- a/src/main/java/org/testng/CommandLineArgs.java
+++ b/src/main/java/org/testng/CommandLineArgs.java
@@ -109,8 +109,9 @@
   @Parameter(names = TEST_JAR, description = "A jar file containing the tests")
   public String testJar;
 
-  public static final String TEST_RUNNER_FACTORY = "-testRunFactory";
-  @Parameter(names = TEST_RUNNER_FACTORY, description = "The factory used to create tests")
+  public static final String TEST_RUNNER_FACTORY = "-testrunfactory";
+  @Parameter(names = { TEST_RUNNER_FACTORY, "-testRunFactory" },
+      description = "The factory used to create tests")
   public String testRunnerFactory;
 
   public static final String PORT = "-port";