diff --git a/scripts/llvm-dependencies.yaml b/scripts/llvm-dependencies.yaml
index c09be14..237b8e3 100644
--- a/scripts/llvm-dependencies.yaml
+++ b/scripts/llvm-dependencies.yaml
@@ -18,7 +18,9 @@ dependencies:
   flang:
   - llvm
   - mlir
-  libc: []
+  libc:
+  - clang
+  - clang-tools-extra
   # FIXME: not sure about 'libcxx' and 'libcxxabi'
   libcxx: []
   libcxxabi: []