diff --git a/scripts/build-downstream-projects.sh b/scripts/build-downstream-projects.sh
index f8218c02d..f3a4117b6 100755
--- a/scripts/build-downstream-projects.sh
+++ b/scripts/build-downstream-projects.sh
@@ -101,4 +101,4 @@ EOF
 
 _ example_helloworld
 _ spl
-# _ serum_dex
+_ serum_dex