diff --git a/src/parsing.rs b/src/parsing.rs
index 270d8551c..feed55ce6 100644
--- a/src/parsing.rs
+++ b/src/parsing.rs
@@ -108,7 +108,7 @@ impl<'s> Iterator for Tokens<'s> {
         use TokensState as TS;
 
         // Return the remaining words and double underscores.
-        if let TS::DoubleUnderscore(ref mut splinor) = self.state {
+        if let TS::DoubleUnderscore(splinor) = &mut self.state {
             loop {
                 if let Some(splined) = splinor.next() {
                     return Some(match splined {