diff --git a/readme.md b/readme.md
index a3fde3b3b9d..5e69baf01a1 100644
--- a/readme.md
+++ b/readme.md
@@ -228,6 +228,12 @@ existing contributors are already familiar with the current code base. We chose
 to evolve it.
 </details>
 
+<details>
+<summary class="blue">Will this break my Nim code?</summary>
+</br>
+This project aims to become a different programming language, so do not expect source code compatibility. If you want Nim then use it.
+</details>
+
 <details>
 <summary class="blue">What's the rationale for this fork?</summary>
 </br>