diff --git a/src/bootstrap/src/core/config/config.rs b/src/bootstrap/src/core/config/config.rs
index e975d71c8c70b..17f256188e1be 100644
--- a/src/bootstrap/src/core/config/config.rs
+++ b/src/bootstrap/src/core/config/config.rs
@@ -2426,7 +2426,7 @@ pub(crate) fn update_submodule<'a>(
     let actual_hash = recorded
         .split_whitespace()
         .nth(2)
-        .unwrap_or_else(|| panic!("unexpected output `{recorded}`"));
+        .unwrap_or_else(|| panic!("unexpected output `{recorded}` when updating {relative_path}"));
 
     if actual_hash == checked_out_hash {
         // already checked out