diff --git a/update_engine.gyp b/update_engine.gyp
index 4212c5b..6fe642f 100644
--- a/update_engine.gyp
+++ b/update_engine.gyp
@@ -281,6 +281,7 @@
         'payload_generator/filesystem_iterator.cc',
         'payload_generator/full_update_generator.cc',
         'payload_generator/graph_utils.cc',
+        'payload_generator/inplace_generator.cc',
         'payload_generator/metadata.cc',
         'payload_generator/payload_signer.cc',
         'payload_generator/tarjan.cc',
@@ -373,6 +374,7 @@
             'payload_generator/filesystem_iterator_unittest.cc',
             'payload_generator/full_update_generator_unittest.cc',
             'payload_generator/graph_utils_unittest.cc',
+            'payload_generator/inplace_generator_unittest.cc',
             'payload_generator/metadata_unittest.cc',
             'payload_generator/payload_signer_unittest.cc',
             'payload_generator/tarjan_unittest.cc',