diff --git a/Cargo.lock b/Cargo.lock
index 8a76ffcbe72..947c0b8f465 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3358,6 +3358,22 @@ dependencies = [
  "core",
 ]
 
+[[package]]
+name = "rustc_ast_lowering"
+version = "0.0.0"
+dependencies = [
+ "log",
+ "rustc",
+ "rustc_data_structures",
+ "rustc_error_codes",
+ "rustc_errors",
+ "rustc_index",
+ "rustc_span",
+ "rustc_target",
+ "smallvec 1.0.0",
+ "syntax",
+]
+
 [[package]]
 name = "rustc_builtin_macros"
 version = "0.0.0"
@@ -3578,6 +3594,7 @@ dependencies = [
  "once_cell",
  "rustc",
  "rustc-rayon",
+ "rustc_ast_lowering",
  "rustc_builtin_macros",
  "rustc_codegen_llvm",
  "rustc_codegen_ssa",
@@ -3783,6 +3800,7 @@ dependencies = [
  "bitflags",
  "log",
  "rustc",
+ "rustc_ast_lowering",
  "rustc_data_structures",
  "rustc_error_codes",
  "rustc_errors",
diff --git a/src/librustc_ast_lowering/Cargo.toml b/src/librustc_ast_lowering/Cargo.toml
new file mode 100644
index 00000000000..664d41c45f2
--- /dev/null
+++ b/src/librustc_ast_lowering/Cargo.toml
@@ -0,0 +1,22 @@
+[package]
+authors = ["The Rust Project Developers"]
+name = "rustc_ast_lowering"
+version = "0.0.0"
+edition = "2018"
+
+[lib]
+name = "rustc_ast_lowering"
+path = "lib.rs"
+doctest = false
+
+[dependencies]
+log = { version = "0.4", features = ["release_max_level_info", "std"] }
+rustc = { path = "../librustc" }
+rustc_target = { path = "../librustc_target" }
+rustc_data_structures = { path = "../librustc_data_structures" }
+rustc_index = { path = "../librustc_index" }
+rustc_span = { path = "../librustc_span" }
+rustc_error_codes = { path = "../librustc_error_codes" }
+rustc_errors = { path = "../librustc_errors" }
+syntax = { path = "../libsyntax" }
+smallvec = { version = "1.0", features = ["union", "may_dangle"] }
diff --git a/src/librustc_interface/Cargo.toml b/src/librustc_interface/Cargo.toml
index 73ff0cd52d7..4926cb23081 100644
--- a/src/librustc_interface/Cargo.toml
+++ b/src/librustc_interface/Cargo.toml
@@ -20,6 +20,7 @@ rustc_parse = { path = "../librustc_parse" }
 syntax_pos = { path = "../librustc_span", package = "rustc_span" }
 rustc_serialize = { path = "../libserialize", package = "serialize" }
 rustc = { path = "../librustc" }
+rustc_ast_lowering = { path = "../librustc_ast_lowering" }
 rustc_incremental = { path = "../librustc_incremental" }
 rustc_traits = { path = "../librustc_traits" }
 rustc_data_structures = { path = "../librustc_data_structures" }
diff --git a/src/librustc_resolve/Cargo.toml b/src/librustc_resolve/Cargo.toml
index 0efc0de3a67..00ca06872c9 100644
--- a/src/librustc_resolve/Cargo.toml
+++ b/src/librustc_resolve/Cargo.toml
@@ -15,10 +15,11 @@ bitflags = "1.2.1"
 log = "0.4"
 syntax = { path = "../libsyntax" }
 rustc_expand = { path = "../librustc_expand" }
-rustc = { path = "../librustc" }
 arena = { path = "../libarena" }
 errors = { path = "../librustc_errors", package = "rustc_errors" }
 syntax_pos = { path = "../librustc_span", package = "rustc_span" }
+rustc = { path = "../librustc" }
+rustc_ast_lowering = { path = "../librustc_ast_lowering" }
 rustc_data_structures = { path = "../librustc_data_structures" }
 rustc_feature = { path = "../librustc_feature" }
 rustc_metadata = { path = "../librustc_metadata" }