diff --git a/python/CMakeLists.txt b/python/CMakeLists.txt
index c7c7cae..0997931 100644
--- a/python/CMakeLists.txt
+++ b/python/CMakeLists.txt
@@ -32,6 +32,7 @@
 add_subdirectory(receiver)
 add_subdirectory(demapping)
 add_subdirectory(transmitter)
+add_subdirectory(trx)
 
 GR_PYTHON_INSTALL(
     FILES