diff --git a/CMakeLists.txt b/CMakeLists.txt
index f832b2f..a8a2815 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -92,8 +92,8 @@ endif()
 
 set(CMAKE_CXX_STANDARD ${sickperception_CXX_STANDARD})
 
-
-list(APPEND ldrp_sources)
+set(ldrp_src "${CMAKE_CURRENT_LIST_DIR}/src")
+list(APPEND ldrp_sources "${ldrp_src}/main.cpp" "${ldrp_src}/ldrp/perception.cpp")
 list(APPEND ldrp_includedirs)
 
 add_executable(ldrp_node ${ldrp_sources})