diff --git a/src/main/java/de/ailis/usb4java/jni/USB_Descriptor_Header.java b/src/main/java/de/ailis/usb4java/jni/USB_Descriptor_Header.java
index a514dc3..3678d5f 100644
--- a/src/main/java/de/ailis/usb4java/jni/USB_Descriptor_Header.java
+++ b/src/main/java/de/ailis/usb4java/jni/USB_Descriptor_Header.java
@@ -30,6 +30,8 @@ public abstract class USB_Descriptor_Header
 
     public USB_Descriptor_Header(final ByteBuffer data)
     {
+        if (data == null)
+            throw new IllegalArgumentException("data must not be null");
         this.data = data;
     }