diff --git a/crates/ra_hir/src/expr/validation.rs b/crates/ra_hir/src/expr/validation.rs
index 5d9d59ff89..c99c9c8690 100644
--- a/crates/ra_hir/src/expr/validation.rs
+++ b/crates/ra_hir/src/expr/validation.rs
@@ -41,7 +41,7 @@ impl<'a, 'b> ExprValidator<'a, 'b> {
 
         let body_expr = &body[body.body_expr()];
         if let Expr::Block { statements: _, tail: Some(t) } = body_expr {
-            self.validate_results_in_tail_expr(*t, db);
+            self.validate_results_in_tail_expr(body.body_expr(), *t, db);
         }
     }
 
@@ -97,8 +97,9 @@ impl<'a, 'b> ExprValidator<'a, 'b> {
         }
     }
 
-    fn validate_results_in_tail_expr(&mut self, id: ExprId, db: &impl HirDatabase) {
-        let mismatch = match self.infer.type_mismatch_for_expr(id) {
+    fn validate_results_in_tail_expr(&mut self, body_id: ExprId, id: ExprId, db: &impl HirDatabase) {
+        // the mismatch will be on the whole block currently
+        let mismatch = match self.infer.type_mismatch_for_expr(body_id) {
             Some(m) => m,
             None => return,
         };