diff --git a/samples/CMakeLists.txt b/samples/CMakeLists.txt
index 079d3af271..1a601589a9 100644
--- a/samples/CMakeLists.txt
+++ b/samples/CMakeLists.txt
@@ -3,8 +3,8 @@
 #
 # ----------------------------------------------------------------------------
 
-#add_subdirectory(c)
-#add_subdirectory(cpp)
+add_subdirectory(c)
+add_subdirectory(cpp)
 add_subdirectory(gpu)
 
 if(0)