diff --git a/examples/src/main/java/org/apache/hama/examples/PageRank.java b/examples/src/main/java/org/apache/hama/examples/PageRank.java
index a1a1116..b3f6554 100644
--- a/examples/src/main/java/org/apache/hama/examples/PageRank.java
+++ b/examples/src/main/java/org/apache/hama/examples/PageRank.java
@@ -206,7 +206,7 @@
         + "Default value - Text");
 
     if (args.length < 2) {
-      new HelpFormatter().printHelp("PageRank -i INPUT_PATH -o OUTPUT_PATH "
+      new HelpFormatter().printHelp("pagerank -i INPUT_PATH -o OUTPUT_PATH "
           + "[-t NUM_TASKS] [-f FILE_TYPE]", opts);
       System.exit(-1);
     }
diff --git a/examples/src/main/java/org/apache/hama/examples/util/FastGraphGen.java b/examples/src/main/java/org/apache/hama/examples/util/FastGraphGen.java
index f1f8b4f..a2f1aa3 100644
--- a/examples/src/main/java/org/apache/hama/examples/util/FastGraphGen.java
+++ b/examples/src/main/java/org/apache/hama/examples/util/FastGraphGen.java
@@ -145,7 +145,7 @@
     boolean outputType = false;
 
     if (args.length == 0) {
-      System.out.println("No args specified for FastGraphGen to initialize");
+      new HelpFormatter().printHelp("gen -p OUTPUT_PATH [options]", opts);
       System.exit(-1);
     }