diff --git a/docs/source/dev/backends.rst b/docs/source/dev/backends.rst
index 71b31a24cded..e3c21b1609b2 100644
--- a/docs/source/dev/backends.rst
+++ b/docs/source/dev/backends.rst
@@ -360,7 +360,9 @@ The following tables list the functions available in the `CUDA Runtime API <http
     +----------------------------+--------------------------------------------------------------------------------------------+
     | cudaFreeArray              | --                                                                                         |
     +----------------------------+--------------------------------------------------------------------------------------------+
-    | cudaFreeHost               | n/a                                                                                        |
+    | cudaFreeAsync              | n/a (automatic memory management with reference counted memory handles)                    |
+    +----------------------------+--------------------------------------------------------------------------------------------+
+    | cudaFreeHost               | n/a (automatic memory management with reference counted memory handles)                                                                                       |
     +----------------------------+--------------------------------------------------------------------------------------------+
     | cudaFreeMipmappedArray     | --                                                                                         |
     +----------------------------+--------------------------------------------------------------------------------------------+
@@ -388,6 +390,8 @@ The following tables list the functions available in the `CUDA Runtime API <http
     +----------------------------+--------------------------------------------------------------------------------------------+
     | cudaMallocArray            | --                                                                                         |
     +----------------------------+--------------------------------------------------------------------------------------------+
+    | cudaMallocAsync            | alpaka::allocAsyncBuf<TElement>(queue, extents1D)                                          |
+    +----------------------------+--------------------------------------------------------------------------------------------+
     | cudaMallocHost             | alpaka::allocMappedBuf<TPltf, TElement>(host, extents) 1D, 2D, 3D supported!               |
     +----------------------------+--------------------------------------------------------------------------------------------+
     | cudaMallocManaged          | --                                                                                         |