diff --git a/Readme.md b/Readme.md
index 0e9f761cce0..acd14b09254 100644
--- a/Readme.md
+++ b/Readme.md
@@ -1,6 +1,6 @@
-# Work in progress cranelift codegen backend for rust
+# WIP Cranelift codegen backend for rust
 
-> ⚠⚠⚠ This doesn't do much useful yet ⚠⚠⚠
+> ⚠⚠⚠ Threads and certain kinds of FFI don't work yet. ⚠⚠⚠
 
 ## Building