diff --git a/Sources/Objectively/Vector.c b/Sources/Objectively/Vector.c
index 85db78d..72aa678 100644
--- a/Sources/Objectively/Vector.c
+++ b/Sources/Objectively/Vector.c
@@ -200,6 +200,7 @@ static Vector *initWithElements(Vector *self, size_t size, size_t count, ident e
 
   self = $(self, initWithSize, size);
   if (self) {
+    self->capacity = count;
     self->count = count;
     self->elements = elements;
   }
diff --git a/Tests/Objectively/Vector.c b/Tests/Objectively/Vector.c
index 228b791..0e42096 100644
--- a/Tests/Objectively/Vector.c
+++ b/Tests/Objectively/Vector.c
@@ -159,8 +159,22 @@ START_TEST(initWithElements) {
   ck_assert_ptr_eq(_Vector(), classof(vector));
 
   ck_assert_int_eq(3, vector->count);
+  ck_assert_int_eq(3, vector->capacity);
   ck_assert_ptr_eq(foo, vector->elements);
 
+  for (int i = 0; i < 3; i++) {
+    $(vector, add, &(Foo) { .bar = i });
+  }
+
+  ck_assert_int_eq(6, vector->count);
+  ck_assert_int_le(6, vector->capacity);
+  ck_assert_int_eq(2, VectorElement(vector, Foo, 5)->bar);
+
+  Vector *copy = (Vector *) $((Object *) vector, copy);
+  ck_assert_int_eq(6, copy->count);
+  ck_assert_int_eq(2, VectorElement(copy, Foo, 5)->bar);
+
+  release(copy);
   release(vector);
 
 } END_TEST