diff --git a/cmd/soong_ui/main.go b/cmd/soong_ui/main.go
index 94d6d5c..8a26171 100644
--- a/cmd/soong_ui/main.go
+++ b/cmd/soong_ui/main.go
@@ -95,5 +95,9 @@
 		}
 	}
 
+	f := build.NewSourceFinder(buildCtx, config)
+	defer f.Shutdown()
+	build.FindSources(buildCtx, config, f)
+
 	build.Build(buildCtx, config, build.BuildAll)
 }