diff --git a/scripts/paycheck.py b/scripts/paycheck.py
index e199a7c..380809e 100755
--- a/scripts/paycheck.py
+++ b/scripts/paycheck.py
@@ -97,6 +97,8 @@
                         default=False,
                         help=('use temp input/output files with BSDIFF '
                               'operations (not in-place)'))
+  trace_opts.add_option('--bspatch-path', metavar='FILE',
+                        help=('use the specified bspatch binary'))
   parser.add_option_group(trace_opts)
 
   trace_opts = optparse.OptionGroup(parser, 'Block tracing')
@@ -152,6 +154,8 @@
       opts.check = True
     if opts.extract_bsdiff:
       parser.error('--extract-bsdiff can only be used when applying payloads')
+    if opts.bspatch_path:
+      parser.error('--bspatch-path can only be used when applying payloads')
   else:
     parser.error('unexpected number of arguments')
 
@@ -218,6 +222,8 @@
       # Apply payload.
       if extra_args:
         dargs = {'bsdiff_in_place': not options.extract_bsdiff}
+        if options.bspatch_path:
+          dargs['bspatch_path'] = options.bspatch_path
         if options.assert_type == _TYPE_DELTA:
           dargs['old_kernel_part'] = extra_args[2]
           dargs['old_rootfs_part'] = extra_args[3]
diff --git a/scripts/update_payload/applier.py b/scripts/update_payload/applier.py
index 85f8b0e..9448ef7 100644
--- a/scripts/update_payload/applier.py
+++ b/scripts/update_payload/applier.py
@@ -192,13 +192,14 @@
 
   """
 
-  def __init__(self, payload, bsdiff_in_place=True,
+  def __init__(self, payload, bsdiff_in_place=True, bspatch_path=None,
                truncate_to_expected_size=True):
     """Initialize the applier.
 
     Args:
       payload: the payload object to check
       bsdiff_in_place: whether to perform BSDIFF operation in-place (optional)
+      bspatch_path: path to the bspatch binary (optional)
       truncate_to_expected_size: whether to truncate the resulting partitions
                                  to their expected sizes, as specified in the
                                  payload (optional)
@@ -208,6 +209,7 @@
     self.payload = payload
     self.block_size = payload.manifest.block_size
     self.bsdiff_in_place = bsdiff_in_place
+    self.bspatch_path = bspatch_path or 'bspatch'
     self.truncate_to_expected_size = truncate_to_expected_size
 
   def _ApplyReplaceOperation(self, op, op_name, out_data, part_file, part_size):
@@ -325,7 +327,7 @@
 
       # Invoke bspatch on partition file with extents args.
       file_name = '/dev/fd/%d' % part_file.fileno()
-      bspatch_cmd = ['bspatch', file_name, file_name, patch_file_name,
+      bspatch_cmd = [self.bspatch_path, file_name, file_name, patch_file_name,
                      in_extents_arg, out_extents_arg]
       subprocess.check_call(bspatch_cmd)
 
@@ -346,7 +348,8 @@
         out_file_name = out_file.name
 
       # Invoke bspatch.
-      bspatch_cmd = ['bspatch', in_file_name, out_file_name, patch_file_name]
+      bspatch_cmd = [self.bspatch_path, in_file_name, out_file_name,
+                     patch_file_name]
       subprocess.check_call(bspatch_cmd)
 
       # Read output.
diff --git a/scripts/update_payload/payload.py b/scripts/update_payload/payload.py
index 0bac091..b13aa11 100644
--- a/scripts/update_payload/payload.py
+++ b/scripts/update_payload/payload.py
@@ -232,7 +232,7 @@
                report_out_file=report_out_file)
 
   def Apply(self, new_kernel_part, new_rootfs_part, old_kernel_part=None,
-            old_rootfs_part=None, bsdiff_in_place=True,
+            old_rootfs_part=None, bsdiff_in_place=True, bspatch_path=None,
             truncate_to_expected_size=True):
     """Applies the update payload.
 
@@ -242,6 +242,7 @@
       old_kernel_part: name of source kernel partition file (optional)
       old_rootfs_part: name of source rootfs partition file (optional)
       bsdiff_in_place: whether to perform BSDIFF operations in-place (optional)
+      bspatch_path: path to the bspatch binary (optional)
       truncate_to_expected_size: whether to truncate the resulting partitions
                                  to their expected sizes, as specified in the
                                  payload (optional)
@@ -253,7 +254,7 @@
 
     # Create a short-lived payload applier object and run it.
     helper = applier.PayloadApplier(
-        self, bsdiff_in_place=bsdiff_in_place,
+        self, bsdiff_in_place=bsdiff_in_place, bspatch_path=bspatch_path,
         truncate_to_expected_size=truncate_to_expected_size)
     helper.Run(new_kernel_part, new_rootfs_part,
                old_kernel_part=old_kernel_part,