diff --git a/doc/configuration.rst b/doc/configuration.rst
index 650c5157b..b4a2ec73c 100644
--- a/doc/configuration.rst
+++ b/doc/configuration.rst
@@ -2616,6 +2616,7 @@ Implements:
          RKUSBDriver:
            image: 'mybootloaderkey'
            usb_loader: 'myloaderkey'
+           offset: 0x100
 
    images:
      mybootloaderkey: 'path/to/mybootloader.img'
@@ -2626,6 +2627,8 @@ Arguments:
     of an image to bootstrap onto the target
   - usb_loader (str): optional, key in :ref:`images <labgrid-device-config-images>` containing the path
     of a first-stage bootloader image to write
+  - offset (int): optional, offset (in multiples of 512 bytes) at which the image passed as argument
+    should be written. If missing, 0x40 is assumed
 
 UUUDriver
 ~~~~~~~~~
diff --git a/labgrid/driver/usbloader.py b/labgrid/driver/usbloader.py
index 94d24cb95..7b1d73f34 100644
--- a/labgrid/driver/usbloader.py
+++ b/labgrid/driver/usbloader.py
@@ -94,6 +94,7 @@ class RKUSBDriver(Driver, BootstrapProtocol):
 
     image = attr.ib(default=None)
     usb_loader = attr.ib(default=None)
+    offset = attr.ib(default=0x40)
 
     def __attrs_post_init__(self):
         super().__attrs_post_init__()
@@ -140,7 +141,7 @@ def load(self, filename=None):
             try:
                 processwrapper.check_output(
                     self.loader.command_prefix +
-                    [self.tool, 'wl', '0x40', mf.get_remote_path()],
+                    [self.tool, 'wl', hex(int(self.offset)), mf.get_remote_path()],
                     print_on_silent_log=True
                 )
                 break