diff --git a/mlearning/CMakeLists.txt b/mlearning/CMakeLists.txt
index fcc400cd6..c4b8742ba 100644
--- a/mlearning/CMakeLists.txt
+++ b/mlearning/CMakeLists.txt
@@ -18,4 +18,6 @@
 #
 # ##############################################################################
 
+nuttx_add_subdirectory()
+
 nuttx_generate_kconfig(MENUDESC "Machine Learning Support")