diff --git a/src/librustc/infer/type_variable.rs b/src/librustc/infer/type_variable.rs
index a5b2e591f91b..96a9f9520b40 100644
--- a/src/librustc/infer/type_variable.rs
+++ b/src/librustc/infer/type_variable.rs
@@ -60,8 +60,6 @@ pub enum TypeVariableOrigin {
     Generalized(ty::TyVid),
 }
 
-pub type TypeVariableMap = FxHashMap<ty::TyVid, TypeVariableOrigin>;
-
 struct TypeVariableData {
     origin: TypeVariableOrigin,
     diverging: bool,