diff --git a/README.md b/README.md
index 83578ec..324ff82 100644
--- a/README.md
+++ b/README.md
@@ -219,6 +219,16 @@ See [LICENSE](LICENSE) for details.
 
 <!-- cargo-sync-readme end -->
 
+## No Panicking
+
+This makes extensive use of the `Result` pattern and is intended to never panic.
+But unfortunately, Rust does not provide any features to prove this behavior.
+The developer of this crate has not found a good solution to ensure no-panic behavior in any way.
+Please report a panic immediately if you found it as issue on [github](https://github.com/ISibboI/evalexpr/issues).
+
+Even if the crate itself is panic free, it allows the user to define custom functions that are executed by the crate.
+The user needs to ensure that the function he provides to the crate never panic.
+
 ## Closing Notes
 
 If you have any ideas for features or see any problems in the code, architecture, interface, algorithmics or documentation, please open an issue on github.