diff --git a/bin/xo-build.in b/bin/xo-build.in
index dbbfc18..49bbf4d 100644
--- a/bin/xo-build.in
+++ b/bin/xo-build.in
@@ -84,6 +84,7 @@ xo-cmake
 xo-indentlog
 xo-refcnt
 xo-subsys
+xo-ratio
 xo-reflect
 xo-pyutil
 xo-pyreflect
@@ -112,6 +113,9 @@ repo() {
         xo-subsys)
             echo "${XO_REPO_STEM}/subsys.git"
             ;;
+        xo-ratio)
+            echo "${XO_REPO_STEM}/xo-ratio.git"
+            ;;
         xo-reflect)
             echo "${XO_REPO_STEM}/reflect.git"
             ;;