diff --git a/src/librustc_mir/Cargo.toml b/src/librustc_mir/Cargo.toml
index 40ea4e1801b..a54f15532b1 100644
--- a/src/librustc_mir/Cargo.toml
+++ b/src/librustc_mir/Cargo.toml
@@ -23,3 +23,4 @@ syntax = { path = "../libsyntax" }
 syntax_pos = { path = "../libsyntax_pos" }
 byteorder = { version = "1.1", features = ["i128"] }
 rustc_apfloat = { path = "../librustc_apfloat" }
+rustc_trans_utils = { path = "../librustc_trans_utils" }
diff --git a/src/librustc_mir/lib.rs b/src/librustc_mir/lib.rs
index e7dd94f75e5..4d26230e061 100644
--- a/src/librustc_mir/lib.rs
+++ b/src/librustc_mir/lib.rs
@@ -54,6 +54,7 @@ extern crate core; // for NonZero
 extern crate log_settings;
 extern crate rustc_apfloat;
 extern crate byteorder;
+extern crate rustc_trans_utils;
 
 mod diagnostics;
 
@@ -65,6 +66,7 @@ mod shim;
 pub mod transform;
 pub mod util;
 pub mod interpret;
+pub mod monomorphize;
 
 use rustc::ty::maps::Providers;
 
diff --git a/src/librustc_trans_utils/collector.rs b/src/librustc_mir/monomorphize/collector.rs
similarity index 99%
rename from src/librustc_trans_utils/collector.rs
rename to src/librustc_mir/monomorphize/collector.rs
index 56b1a0238a1..498ddf9c85c 100644
--- a/src/librustc_trans_utils/collector.rs
+++ b/src/librustc_mir/monomorphize/collector.rs
@@ -207,7 +207,7 @@ use common::{def_ty, instance_ty, type_has_metadata};
 use monomorphize::{self, Instance};
 use rustc::util::nodemap::{FxHashSet, FxHashMap, DefIdMap};
 
-use trans_item::{TransItemExt, DefPathBasedNames, InstantiationMode};
+use rustc_trans_utils::trans_item::{TransItemExt, DefPathBasedNames, InstantiationMode};
 
 use rustc_data_structures::bitvec::BitVector;
 
diff --git a/src/librustc_mir/monomorphize/common.rs b/src/librustc_mir/monomorphize/common.rs
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/src/librustc_mir/monomorphize/mod.rs b/src/librustc_mir/monomorphize/mod.rs
new file mode 100644
index 00000000000..e0247862ec2
--- /dev/null
+++ b/src/librustc_mir/monomorphize/mod.rs
@@ -0,0 +1 @@
+pub mod collector;
diff --git a/src/librustc_trans/Cargo.toml b/src/librustc_trans/Cargo.toml
index 131cf59a571..f1549d98421 100644
--- a/src/librustc_trans/Cargo.toml
+++ b/src/librustc_trans/Cargo.toml
@@ -28,6 +28,7 @@ rustc_incremental = { path = "../librustc_incremental" }
 rustc_llvm = { path = "../librustc_llvm" }
 rustc_platform_intrinsics = { path = "../librustc_platform_intrinsics" }
 rustc_trans_utils = { path = "../librustc_trans_utils" }
+rustc_mir = { path = "../librustc_mir" }
 serialize = { path = "../libserialize" }
 syntax = { path = "../libsyntax" }
 syntax_pos = { path = "../libsyntax_pos" }
diff --git a/src/librustc_trans/base.rs b/src/librustc_trans/base.rs
index 911ec561887..d28f0c5bd84 100644
--- a/src/librustc_trans/base.rs
+++ b/src/librustc_trans/base.rs
@@ -55,7 +55,7 @@ use attributes;
 use builder::Builder;
 use callee;
 use common::{C_bool, C_bytes_in_context, C_i32, C_usize};
-use collector::{self, TransItemCollectionMode};
+use rustc_mir::monomorphize::collector::{self, TransItemCollectionMode};
 use common::{self, C_struct_in_context, C_array, CrateContext, val_ty};
 use consts;
 use context::{self, LocalCrateContext, SharedCrateContext};
diff --git a/src/librustc_trans/lib.rs b/src/librustc_trans/lib.rs
index f6cc1215699..7f2b875394c 100644
--- a/src/librustc_trans/lib.rs
+++ b/src/librustc_trans/lib.rs
@@ -43,6 +43,7 @@ extern crate libc;
 #[macro_use] extern crate rustc;
 extern crate jobserver;
 extern crate num_cpus;
+extern crate rustc_mir;
 extern crate rustc_allocator;
 extern crate rustc_apfloat;
 extern crate rustc_back;
@@ -84,7 +85,6 @@ use rustc::session::config::{OutputFilenames, OutputType};
 use rustc::ty::{self, TyCtxt};
 use rustc::util::nodemap::{FxHashSet, FxHashMap};
 
-use rustc_trans_utils::collector;
 use rustc_trans_utils::monomorphize;
 
 mod diagnostics;
diff --git a/src/librustc_trans/partitioning.rs b/src/librustc_trans/partitioning.rs
index 03c0f13e2f5..05297761ef1 100644
--- a/src/librustc_trans/partitioning.rs
+++ b/src/librustc_trans/partitioning.rs
@@ -102,7 +102,7 @@
 //! source-level module, functions from the same module will be available for
 //! inlining, even when they are not marked #[inline].
 
-use collector::InliningMap;
+use rustc_mir::monomorphize::collector::InliningMap;
 use common;
 use rustc::dep_graph::WorkProductId;
 use rustc::hir::def_id::DefId;
diff --git a/src/librustc_trans_utils/lib.rs b/src/librustc_trans_utils/lib.rs
index 3a42462e41e..4ee6602dfe6 100644
--- a/src/librustc_trans_utils/lib.rs
+++ b/src/librustc_trans_utils/lib.rs
@@ -35,7 +35,6 @@ extern crate log;
 #[macro_use]
 extern crate rustc;
 extern crate rustc_back;
-extern crate rustc_data_structures;
 extern crate syntax;
 extern crate syntax_pos;
 
@@ -47,7 +46,6 @@ use rustc::util::nodemap::NodeSet;
 
 pub mod common;
 pub mod link;
-pub mod collector;
 pub mod trans_item;
 pub mod monomorphize;
 pub mod trans_crate;