diff --git a/wscript b/wscript
index 6872b0b..69e49b9 100644
--- a/wscript
+++ b/wscript
@@ -99,6 +99,7 @@
                   'src/action-log.cc',
                   'src/action-item.proto',
                   'src/sync-state.proto',
+                  'src/sync-core.cc',
             ],
         use = "BOOST SQLITE3 SSL common",
         includes = ['include', 'src'],