diff --git a/src/reactor/CMakeLists.txt b/src/reactor/CMakeLists.txt
index f65772c1..f84c1ca3 100644
--- a/src/reactor/CMakeLists.txt
+++ b/src/reactor/CMakeLists.txt
@@ -21,4 +21,4 @@ xo_dependency(${SELF_LIB} reflect)
 xo_dependency(${SELF_LIB} webutil)
 xo_dependency(${SELF_LIB} printjson)
 xo_dependency(${SELF_LIB} callback)
-xo_dependency(${SELF_LIB} ordinaltree)
+xo_dependency(${SELF_LIB} xo_ordinaltree)