1 files changed, 2 insertions, 0 deletions

diff --git a/crates/ra_assists/src/assist_ctx.rs b/crates/ra_assists/src/assist_ctx.rs
index 28152f724..1a65b5dc0 100644
--- a/crates/ra_assists/src/assist_ctx.rs
+++ b/crates/ra_assists/src/assist_ctx.rs
@@ -84,6 +84,8 @@ impl<'a, DB: HirDatabase> AssistCtx<'a, DB> {
         f: impl FnOnce(&mut AssistBuilder),
     ) -> Option<Assist> {
         let label = AssistLabel { label: label.into(), id };
+        assert!(label.label.chars().nth(0).unwrap().is_uppercase());
+
         let assist = if self.should_compute_edit {
             let action = {
                 let mut edit = AssistBuilder::default();