diff --git a/docs/Scheme-Language-Compliance.md b/docs/Scheme-Language-Compliance.md
index b2178a07..a16dae10 100644
--- a/docs/Scheme-Language-Compliance.md
+++ b/docs/Scheme-Language-Compliance.md
@@ -10,7 +10,7 @@ Section | Status | Comments
 3.1 Variables, syntactic keywords, and regions | Yes |
 3.2 Disjointness of types | Yes |
 3.3 External representations | Yes |
-3.4 Storage model | Yes | No immutable types at this time.
+3.4 Storage model | Yes |
 3.5 Proper tail recursion | Yes |
 4.1 Primitive expression types | Yes |
 4.2 Derived expression types | Yes |