diff --git a/bindings/java/src/net/hyperic/sigar/OperatingSystem.java b/bindings/java/src/net/hyperic/sigar/OperatingSystem.java
index 3be8699e..66e08f60 100644
--- a/bindings/java/src/net/hyperic/sigar/OperatingSystem.java
+++ b/bindings/java/src/net/hyperic/sigar/OperatingSystem.java
@@ -65,6 +65,9 @@ public class OperatingSystem {
             }
             else if (os.name.equals("HP-UX")) {
                 os.vendor = "Hewlett-Packard";
+                if (os.version.indexOf(".11.") != -1) {
+                    os.vendorVersion = "11";
+                }
             }
             else if (os.name.equals("OSF1")) {
                 //HP acquired DEC
@@ -83,6 +86,10 @@ public class OperatingSystem {
                 os.vendor = "Unknown";
             }
 
+            if (os.vendorVersion == null) {
+                os.vendorVersion = os.version;
+            }
+
             instance = os;
         }