diff --git a/docs/major-mode.md b/docs/major-mode.md
index b05f47b..6b7bec6 100644
--- a/docs/major-mode.md
+++ b/docs/major-mode.md
@@ -60,6 +60,13 @@ Required extensions:
 
 - [C/C++ Extension](https://marketplace.visualstudio.com/items?itemName=ms-vscode.cpptools)
 
+## CUDA-C++
+
+Required extensions:
+
+- [C/C++ Extension](https://marketplace.visualstudio.com/items?itemName=ms-vscode.cpptools)
+- [Nsight Visual Studio Code Edition](https://marketplace.visualstudio.com/items?itemName=NVIDIA.nsight-vscode-edition)
+
 ## C\#
 
 Required extensions: