diff --git a/src/lib.rs b/src/lib.rs
index 48f789d..c1398e2 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -594,11 +594,12 @@ impl Pattern {
                             });
                         };
 
-                        let tokens_len = tokens.len();
-
                         if is_valid {
                             // collapse consecutive AnyRecursiveSequence to a
                             // single one
+
+                            let tokens_len = tokens.len();
+
                             if !(tokens_len > 1 && tokens[tokens_len - 1] == AnyRecursiveSequence) {
                                 is_recursive = true;
                                 tokens.push(AnyRecursiveSequence);
@@ -967,7 +968,7 @@ fn chars_eq(a: char, b: char, case_sensitive: bool) -> bool {
 
 /// Configuration options to modify the behaviour of `Pattern::matches_with(..)`.
 #[allow(missing_copy_implementations)]
-#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Default)]
+#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Default)]
 pub struct MatchOptions {
     /// Whether or not patterns should be matched in a case-sensitive manner.
     /// This currently only considers upper/lower case relationships between