diff --git a/bindings/python/src/tokenizer.rs b/bindings/python/src/tokenizer.rs
index f66f5d2dd..d13aac2ed 100644
--- a/bindings/python/src/tokenizer.rs
+++ b/bindings/python/src/tokenizer.rs
@@ -721,7 +721,7 @@ impl PyTokenizer {
     /// Disable truncation
     #[pyo3(text_signature = "(self)")]
     fn no_truncation(&mut self) {
-        let _ = self.tokenizer.with_truncation(None);
+        self.tokenizer.with_truncation(None).expect("Failed to set truncation to `None`! This should never happen");
     }
 
     /// Get the currently set truncation parameters