diff --git a/src/librustc/infer/mod.rs b/src/librustc/infer/mod.rs
index 41e1bf303b3..e3db08c0adf 100644
--- a/src/librustc/infer/mod.rs
+++ b/src/librustc/infer/mod.rs
@@ -55,7 +55,7 @@
 pub mod lattice;
 mod lub;
 pub mod region_inference;
-mod region_obligations;
+mod outlives;
 pub mod resolve;
 mod freshen;
 mod sub;
diff --git a/src/librustc/infer/outlives/mod.rs b/src/librustc/infer/outlives/mod.rs
new file mode 100644
index 00000000000..321c4b87fb3
--- /dev/null
+++ b/src/librustc/infer/outlives/mod.rs
@@ -0,0 +1 @@
+mod obligations;
diff --git a/src/librustc/infer/region_obligations.rs b/src/librustc/infer/outlives/obligations.rs
similarity index 100%
rename from src/librustc/infer/region_obligations.rs
rename to src/librustc/infer/outlives/obligations.rs