diff --git a/library/core/src/array/mod.rs b/library/core/src/array/mod.rs
index b3a498570f95a..a20e16af2b0a2 100644
--- a/library/core/src/array/mod.rs
+++ b/library/core/src/array/mod.rs
@@ -484,7 +484,7 @@ macro_rules! array_impl_default {
     };
     {$n:expr,} => {
         #[stable(since = "1.4.0", feature = "array_default")]
-        impl<T> Default for [T; $n] {
+        impl<T> Default for [T; $n] where T: Default {
             fn default() -> [T; $n] { [] }
         }
     };
diff --git a/library/coretests/tests/array.rs b/library/coretests/tests/array.rs
index 30ccbbc320318..2dc0e2ed3681b 100644
--- a/library/coretests/tests/array.rs
+++ b/library/coretests/tests/array.rs
@@ -292,13 +292,6 @@ fn array_default_impl_avoids_leaks_on_panic() {
     assert_eq!(COUNTER.load(Relaxed), 0);
 }
 
-#[test]
-fn empty_array_is_always_default() {
-    struct DoesNotImplDefault;
-
-    let _arr = <[DoesNotImplDefault; 0]>::default();
-}
-
 #[test]
 fn array_map() {
     let a = [1, 2, 3];