diff --git a/assets/99noble.list b/assets/99noble.list
index 71d50c7..0486564 100644
--- a/assets/99noble.list
+++ b/assets/99noble.list
@@ -1,7 +1,9 @@
 deb [signed-by=/etc/apt/keyrings/ubuntu-toolchain-r.asc] http://ppa.launchpad.net/ubuntu-toolchain-r/ppa/ubuntu noble main
 deb [signed-by=/etc/apt/keyrings/ubuntu-toolchain-r.asc] http://ppa.launchpad.net/ubuntu-toolchain-r/test/ubuntu noble main
+deb [signed-by=/etc/apt/keyrings/llvm-snapshot.gpg.key.asc] http://apt.llvm.org/noble/ llvm-toolchain-noble-21 main
 deb [signed-by=/etc/apt/keyrings/llvm-snapshot.gpg.key.asc] http://apt.llvm.org/noble/ llvm-toolchain-noble main
 
 deb-src [signed-by=/etc/apt/keyrings/ubuntu-toolchain-r.asc] http://ppa.launchpad.net/ubuntu-toolchain-r/ppa/ubuntu noble main
 deb-src [signed-by=/etc/apt/keyrings/ubuntu-toolchain-r.asc] http://ppa.launchpad.net/ubuntu-toolchain-r/test/ubuntu noble main
+deb-src [signed-by=/etc/apt/keyrings/llvm-snapshot.gpg.key.asc] http://apt.llvm.org/noble/ llvm-toolchain-noble-21 main
 deb-src [signed-by=/etc/apt/keyrings/llvm-snapshot.gpg.key.asc] http://apt.llvm.org/noble/ llvm-toolchain-noble main