diff --git a/plasma-workspace/CMakeLists.txt b/plasma-workspace/CMakeLists.txt
index 85c76e38..efb77ed3 100644
--- a/plasma-workspace/CMakeLists.txt
+++ b/plasma-workspace/CMakeLists.txt
@@ -142,6 +142,7 @@ add_subdirectory(components)
 add_subdirectory(plasma-windowed)
 add_subdirectory(shell)
 add_subdirectory(freespacenotifier)
+add_subdirectory(freememorynotifier)
 add_subdirectory(klipper)
 add_subdirectory(krunner)
 add_subdirectory(ksmserver)