diff --git a/reactos/sdk/lib/drivers/CMakeLists.txt b/reactos/sdk/lib/drivers/CMakeLists.txt
index 9ab9eb37a4b..141db7db5b7 100644
--- a/reactos/sdk/lib/drivers/CMakeLists.txt
+++ b/reactos/sdk/lib/drivers/CMakeLists.txt
@@ -1,5 +1,6 @@
 
 add_subdirectory(chew)
+add_subdirectory(copysup)
 add_subdirectory(csq)
 add_subdirectory(hidparser)
 add_subdirectory(ip)