diff --git a/src/nvim/eval.c b/src/nvim/eval.c
index b034ea5937..f2f2e4a109 100644
--- a/src/nvim/eval.c
+++ b/src/nvim/eval.c
@@ -1378,7 +1378,7 @@ static char *get_lval_subscript(lval_T *lp, char *p, char *name, typval_T *rettv
       return NULL;
     }
 
-    // a NULL list/blob works like an empty list/blob, allocate one now.
+    // A NULL list/blob works like an empty list/blob, allocate one now.
     if (lp->ll_tv->v_type == VAR_LIST && lp->ll_tv->vval.v_list == NULL) {
       tv_list_alloc_ret(lp->ll_tv, kListLenUnknown);
     } else if (lp->ll_tv->v_type == VAR_BLOB && lp->ll_tv->vval.v_blob == NULL) {
diff --git a/src/nvim/eval/typval.c b/src/nvim/eval/typval.c
index 555e0d6a50..e34784ad4f 100644
--- a/src/nvim/eval/typval.c
+++ b/src/nvim/eval/typval.c
@@ -3341,7 +3341,7 @@ void tv_dict_remove(typval_T *argvars, typval_T *rettv, const char *arg_errmsg)
 ///
 /// @param[out]  ret_tv  Structure where blob is saved.
 blob_T *tv_blob_alloc_ret(typval_T *const ret_tv)
-  FUNC_ATTR_NONNULL_ALL
+  FUNC_ATTR_NONNULL_ALL FUNC_ATTR_NONNULL_RET
 {
   blob_T *const b = tv_blob_alloc();
   tv_blob_set_ret(ret_tv, b);