diff --git a/Build.md b/Build.md
index e14f04c..6a961d3 100644
--- a/Build.md
+++ b/Build.md
@@ -1,5 +1,5 @@
 Some distributions package a pre-built version of **ccls**. See the
-system-specific sections below. If you build **ccls** from source, you will need:
+[system-specific](#system-specific-notes) sections below. If you build **ccls** from source, you will need:
 
 * [CMake](https://cmake.org/) 3.8 or higher.
 * A C++ compiler with C++17 support:
@@ -137,9 +137,14 @@ Also you can install ccls-git from the archlinuxcn repo using pacman.
 ### Debian
 
 ```sh
-# system clang: apt install clang-7 libclang-7-dev
-sudo apt install zlib1g-dev libncurses-dev
-cmake -H. -BRelease -DCMAKE_PREFIX_PATH=/usr/lib/llvm-7
+# bullseye/11 and later
+sudo apt install ccls
+```
+
+```sh
+# build from source
+sudo apt install clang cmake libclang-dev llvm-dev rapidjson-dev
+cmake -H. -BRelease
 ```
 
 ### Fedora