diff --git a/BUILD.gn b/BUILD.gn
index f8f8b0a..5dc1d95 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -30,6 +30,7 @@
 
 package("asio_unittests") {
   testonly = true
+  system_image = true
 
   deps = [
     ":tests",