diff --git a/cub/util_namespace.cuh b/cub/util_namespace.cuh
index 4488d97f6b..5f322d5d65 100644
--- a/cub/util_namespace.cuh
+++ b/cub/util_namespace.cuh
@@ -48,6 +48,7 @@
 #endif
 
 // Declare these namespaces here for the purpose of Doxygenating them
+CUB_NS_PREFIX
 
 /*! \namespace cub
  *  \brief \p cub is the top-level namespace which contains all CUB
@@ -57,3 +58,5 @@ namespace cub
 {
 
 }
+
+CUB_NS_POSTFIX