diff --git a/bindings/python/src/pre_tokenizers.rs b/bindings/python/src/pre_tokenizers.rs
index 0fd9e9d40..56219e770 100644
--- a/bindings/python/src/pre_tokenizers.rs
+++ b/bindings/python/src/pre_tokenizers.rs
@@ -536,10 +536,9 @@ impl PyMetaspace {
 
         // If a prepend scheme is provided, set it
         if let Some(prepend_scheme) = prepend_scheme {
-            if let Ok(prepend_scheme_enum) = _from_string(prepend_scheme) {
-                new_instance.set_prepend_scheme(prepend_scheme_enum);
-            } else {
-                return Err(err);
+            match _from_string(prepend_scheme) {
+                Ok(prepend_scheme_enum) => new_instance.set_prepend_scheme(prepend_scheme_enum),
+                Err(err) => return Err(err),
             }
         }
         Ok((PyMetaspace {}, new_instance.into()))