diff --git a/src/mscorlib/shared/System/Collections/Generic/Dictionary.cs b/src/mscorlib/shared/System/Collections/Generic/Dictionary.cs
index 24eaa0d12d9a..a297c6c07c92 100644
--- a/src/mscorlib/shared/System/Collections/Generic/Dictionary.cs
+++ b/src/mscorlib/shared/System/Collections/Generic/Dictionary.cs
@@ -143,7 +143,7 @@ public IEqualityComparer<TKey> Comparer
         {
             get
             {
-                return _comparer;
+                return (_comparer is NonRandomizedStringEqualityComparer) ? (IEqualityComparer<TKey>)EqualityComparer<string>.Default : _comparer;
             }
         }