diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index e071cc9f96..9cb08b3e44 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -14440,7 +14440,7 @@ namespace ts {
             if (propType) {
                 return propType;
             }
-            if (everyType(type, isTupleType) && !everyType(type, t => !(<TupleTypeReference>t).target.hasRestElement)) {
+            if (everyType(type, isTupleType)) {
                 return mapType(type, t => getRestTypeOfTupleType(<TupleTypeReference>t) || undefinedType);
             }
             return undefined;