diff --git a/Build.md b/Build.md
index 4f76769..1e796cd 100644
--- a/Build.md
+++ b/Build.md
@@ -210,6 +210,14 @@ See https://github.com/MaskRay/ccls/issues/191#issuecomment-453809905 for detail
 * To use the releases.llvm.org prebuilt archive and its libc++ add CMake flag
   `-DCLANG_USE_BUNDLED_LIBC++=on`
 
+## GuixSD (0.16)
+
+```sh
+guix package -i cmake clang gcc-toolchain
+cmake -H. -BRelease -DCMAKE_BUILD_TYPE=Release -DCMAKE_PREFIX_PATH=/home/$USER/.guix-profile/bin/clang
+cmake --build Release
+```
+
 ## Windows
 
 The Windows archive on releases.llvm.org does not contain library headers.