diff --git a/test/built-ins/WeakMap/prototype/has/returns-false-when-symbol-key-not-present.js b/test/built-ins/WeakMap/prototype/has/returns-false-when-symbol-key-not-present.js
index 3b3d05e3a5d..a6574426e4b 100644
--- a/test/built-ins/WeakMap/prototype/has/returns-false-when-symbol-key-not-present.js
+++ b/test/built-ins/WeakMap/prototype/has/returns-false-when-symbol-key-not-present.js
@@ -14,15 +14,15 @@ var foo = Symbol('a description');
 var bar = Symbol('a description');
 var map = new WeakMap();
 
-assert.sameValue(map.has(foo), false, 'Map is initially empty of regular symbol');
-assert.sameValue(map.has(Symbol.hasInstance), false, 'Map is initially empty of well-known symbol');
+assert.sameValue(map.has(foo), false, 'WeakMap is initially empty of regular symbol');
+assert.sameValue(map.has(Symbol.hasInstance), false, 'WeakMap is initially empty of well-known symbol');
 
 map.set(foo, 1);
 assert.sameValue(map.has(bar), false, "Symbols with the same description don't alias each other");
 
 map.delete(foo);
-assert.sameValue(map.has(foo), false, 'Map is empty again of regular symbol after deleting');
+assert.sameValue(map.has(foo), false, 'WeakMap is empty again of regular symbol after deleting');
 
 map.set(Symbol.hasInstance, 2);
 map.delete(Symbol.hasInstance);
-assert.sameValue(map.has(Symbol.hasInstance), false, 'Map is empty again of well-known symbol after deleting');
+assert.sameValue(map.has(Symbol.hasInstance), false, 'WeakMap is empty again of well-known symbol after deleting');
diff --git a/test/built-ins/WeakSet/prototype/has/returns-false-when-symbol-value-not-present.js b/test/built-ins/WeakSet/prototype/has/returns-false-when-symbol-value-not-present.js
index f9cbfa18dd9..f975e4c74f8 100644
--- a/test/built-ins/WeakSet/prototype/has/returns-false-when-symbol-value-not-present.js
+++ b/test/built-ins/WeakSet/prototype/has/returns-false-when-symbol-value-not-present.js
@@ -14,13 +14,13 @@ var foo = Symbol('a description');
 var bar = Symbol('a description');
 var s = new WeakSet();
 
-assert.sameValue(s.has(foo), false, 'Set is initially empty of regular symbol');
-assert.sameValue(s.has(Symbol.hasInstance), false, 'Set is initially empty of well-known symbol');
+assert.sameValue(s.has(foo), false, 'WeakSet is initially empty of regular symbol');
+assert.sameValue(s.has(Symbol.hasInstance), false, 'WeakSet is initially empty of well-known symbol');
 
 s.add(foo);
 assert.sameValue(s.has(bar), false, 'Symbols with the same description are not aliased to each other');
 
 s.delete(foo);
-assert.sameValue(s.has(foo), false, 'Set is again empty of regular symbol after deleting');
+assert.sameValue(s.has(foo), false, 'WeakSet is again empty of regular symbol after deleting');
 s.delete(Symbol.hasInstance);
-assert.sameValue(s.has(Symbol.hasInstance), false, 'Set is again empty of well-known symbol after deleting');
+assert.sameValue(s.has(Symbol.hasInstance), false, 'WeakSet is again empty of well-known symbol after deleting');