diff --git a/plugins/ladspa_effect/cmt/CMakeLists.txt b/plugins/ladspa_effect/cmt/CMakeLists.txt
index 93ce537539..80b6316dac 100644
--- a/plugins/ladspa_effect/cmt/CMakeLists.txt
+++ b/plugins/ladspa_effect/cmt/CMakeLists.txt
@@ -1,5 +1,5 @@
 INCLUDE_DIRECTORIES("${CMAKE_SOURCE_DIR}/include")
-FILE(GLOB SOURCES src/*.cpp)
+FILE(GLOB_RECURSE SOURCES src/*.cpp)
 ADD_LIBRARY(cmt MODULE ${SOURCES})
 INSTALL(TARGETS cmt LIBRARY DESTINATION ${PLUGIN_DIR}/ladspa)