1 files changed, 1 insertions, 1 deletions

diff --git a/crates/mbe/src/expander/transcriber.rs b/crates/mbe/src/expander/transcriber.rs
index 78368a33e..c679e5e5d 100644
--- a/crates/mbe/src/expander/transcriber.rs
+++ b/crates/mbe/src/expander/transcriber.rs
@@ -17,7 +17,7 @@ impl Bindings {
     }
 
     fn get(&self, name: &str, nesting: &mut [NestingState]) -> Result<&Fragment, ExpandError> {
-        let mut b = self.inner.get(name).ok_or_else(|| {
+        let mut b: &Binding = self.inner.get(name).ok_or_else(|| {
             ExpandError::BindingError(format!("could not find binding `{}`", name))
         })?;
         for nesting_state in nesting.iter_mut() {