diff --git a/src/librustc_codegen_llvm/consts.rs b/src/librustc_codegen_llvm/consts.rs
index f7a06a9b23c3..c05a7a35665d 100644
--- a/src/librustc_codegen_llvm/consts.rs
+++ b/src/librustc_codegen_llvm/consts.rs
@@ -10,6 +10,7 @@ use libc::c_uint;
 use rustc::hir::def_id::DefId;
 use rustc::mir::interpret::{ConstValue, Allocation, read_target_uint,
     Pointer, ErrorHandled, GlobalId};
+use rustc::mir::mono::MonoItem;
 use rustc::hir::Node;
 use syntax_pos::Span;
 use rustc_target::abi::HasDataLayout;
diff --git a/src/librustc_codegen_llvm/context.rs b/src/librustc_codegen_llvm/context.rs
index f863d91e17c8..ead9bad656db 100644
--- a/src/librustc_codegen_llvm/context.rs
+++ b/src/librustc_codegen_llvm/context.rs
@@ -5,12 +5,12 @@ use crate::value::Value;
 use rustc::dep_graph::DepGraphSafe;
 use rustc::hir;
 
-use crate::monomorphize::partitioning::CodegenUnit;
 use crate::type_::Type;
 use rustc_codegen_ssa::traits::*;
 
 use rustc_data_structures::base_n;
 use rustc_data_structures::small_c_str::SmallCStr;
+use rustc::mir::mono::CodegenUnit;
 use rustc::session::config::{self, DebugInfo};
 use rustc::session::Session;
 use rustc::ty::layout::{
diff --git a/src/librustc_codegen_ssa/base.rs b/src/librustc_codegen_ssa/base.rs
index b1603a5f6c67..2f134e6e358b 100644
--- a/src/librustc_codegen_ssa/base.rs
+++ b/src/librustc_codegen_ssa/base.rs
@@ -20,7 +20,7 @@ use rustc::hir::def_id::{DefId, LOCAL_CRATE};
 use rustc::middle::cstore::EncodedMetadata;
 use rustc::middle::lang_items::StartFnLangItem;
 use rustc::middle::weak_lang_items;
-use rustc::mir::mono::CodegenUnitNameBuilder;
+use rustc::mir::mono::{CodegenUnitNameBuilder, CodegenUnit};
 use rustc::ty::{self, Ty, TyCtxt, Instance};
 use rustc::ty::layout::{self, Align, TyLayout, LayoutOf, VariantIdx, HasTyCtxt};
 use rustc::ty::query::Providers;
@@ -28,7 +28,7 @@ use rustc::middle::cstore::{self, LinkagePreference};
 use rustc::util::common::{time, print_time_passes_entry};
 use rustc::session::config::{self, EntryFnType, Lto};
 use rustc::session::Session;
-use rustc_mir::monomorphize::partitioning::{CodegenUnit, CodegenUnitExt};
+use rustc_mir::monomorphize::partitioning::CodegenUnitExt;
 use rustc::util::nodemap::FxHashMap;
 use rustc_data_structures::indexed_vec::Idx;
 use rustc_codegen_utils::{symbol_names_test, check_for_rustc_errors_attr};
diff --git a/src/librustc_codegen_ssa/traits/misc.rs b/src/librustc_codegen_ssa/traits/misc.rs
index 5ea86df6e945..46c88a6113eb 100644
--- a/src/librustc_codegen_ssa/traits/misc.rs
+++ b/src/librustc_codegen_ssa/traits/misc.rs
@@ -1,8 +1,8 @@
 use super::BackendTypes;
+use rustc::mir::mono::CodegenUnit;
 use rustc::session::Session;
 use rustc::ty::{self, Instance, Ty};
 use rustc::util::nodemap::FxHashMap;
-use rustc_mir::monomorphize::partitioning::CodegenUnit;
 use std::cell::RefCell;
 use std::sync::Arc;
 
diff --git a/src/librustc_codegen_utils/symbol_names.rs b/src/librustc_codegen_utils/symbol_names.rs
index a8addcff318f..9f710d7932dc 100644
--- a/src/librustc_codegen_utils/symbol_names.rs
+++ b/src/librustc_codegen_utils/symbol_names.rs
@@ -93,7 +93,8 @@ use rustc::hir::CodegenFnAttrFlags;
 use rustc::session::config::SymbolManglingVersion;
 use rustc::ty::query::Providers;
 use rustc::ty::{self, TyCtxt, Instance};
-use rustc_mir::monomorphize::item::{InstantiationMode, MonoItem, MonoItemExt};
+use rustc::mir::mono::MonoItem;
+use rustc_mir::monomorphize::item::{InstantiationMode, MonoItemExt};
 
 use syntax_pos::symbol::InternedString;
 
diff --git a/src/librustc_mir/monomorphize/item.rs b/src/librustc_mir/monomorphize/item.rs
index 8b44f148facf..c685283b3dc0 100644
--- a/src/librustc_mir/monomorphize/item.rs
+++ b/src/librustc_mir/monomorphize/item.rs
@@ -1,9 +1,9 @@
-use crate::monomorphize::Instance;
 use rustc::hir;
 use rustc::hir::def_id::{DefId, LOCAL_CRATE};
 use rustc::mir::interpret::ConstValue;
+use rustc::mir::mono::MonoItem;
 use rustc::session::config::OptLevel;
-use rustc::ty::{self, Ty, TyCtxt, Const, ClosureSubsts, GeneratorSubsts};
+use rustc::ty::{self, Ty, TyCtxt, Const, ClosureSubsts, GeneratorSubsts, Instance};
 use rustc::ty::subst::{SubstsRef, InternalSubsts};
 use syntax::ast;
 use syntax::attr::InlineAttr;
@@ -12,7 +12,6 @@ use std::iter;
 use rustc::mir::mono::Linkage;
 use syntax_pos::symbol::InternedString;
 use syntax::source_map::Span;
-pub use rustc::mir::mono::MonoItem;
 
 /// Describes how a monomorphization will be instantiated in object files.
 #[derive(PartialEq, Eq, Clone, Copy, Debug, Hash)]
diff --git a/src/librustc_mir/monomorphize/mod.rs b/src/librustc_mir/monomorphize/mod.rs
index ab93a8415309..f7b32dc84bdd 100644
--- a/src/librustc_mir/monomorphize/mod.rs
+++ b/src/librustc_mir/monomorphize/mod.rs
@@ -1,8 +1,8 @@
 use rustc::traits;
 use rustc::ty::adjustment::CustomCoerceUnsized;
-use rustc::ty::{self, Ty, TyCtxt, Instance};
+use rustc::ty::{self, Ty, TyCtxt};
 
-pub use self::item::{MonoItem, MonoItemExt};
+pub use self::item::MonoItemExt;
 
 pub mod collector;
 pub mod item;
diff --git a/src/librustc_mir/monomorphize/partitioning.rs b/src/librustc_mir/monomorphize/partitioning.rs
index 2e3d1e618aed..cc90d6c95c91 100644
--- a/src/librustc_mir/monomorphize/partitioning.rs
+++ b/src/librustc_mir/monomorphize/partitioning.rs
@@ -101,7 +101,7 @@ use rustc::dep_graph::{WorkProductId, WorkProduct, DepNode, DepConstructor};
 use rustc::hir::{CodegenFnAttrFlags, HirId};
 use rustc::hir::def::DefKind;
 use rustc::hir::def_id::{CrateNum, DefId, LOCAL_CRATE, CRATE_DEF_INDEX};
-use rustc::mir::mono::{Linkage, Visibility, CodegenUnitNameBuilder};
+use rustc::mir::mono::{Linkage, Visibility, CodegenUnitNameBuilder, CodegenUnit};
 use rustc::middle::exported_symbols::SymbolExportLevel;
 use rustc::ty::{self, DefIdTree, TyCtxt, InstanceDef};
 use rustc::ty::print::characteristic_def_id_of_type;
@@ -114,8 +114,6 @@ use crate::monomorphize::collector::InliningMap;
 use crate::monomorphize::collector::{self, MonoItemCollectionMode};
 use crate::monomorphize::item::{MonoItemExt, InstantiationMode};
 
-pub use rustc::mir::mono::CodegenUnit;
-
 pub enum PartitioningStrategy {
     /// Generates one codegen unit per source-level module.
     PerModule,