diff --git a/src/nvim/eval/userfunc.c b/src/nvim/eval/userfunc.c
index 51115b960b..77eb13620c 100644
--- a/src/nvim/eval/userfunc.c
+++ b/src/nvim/eval/userfunc.c
@@ -415,10 +415,7 @@ int get_lambda_tv(char **arg, typval_T *rettv, evalarg_T *evalarg)
 
 errret:
   ga_clear_strings(&newargs);
-  if (fp != NULL) {
-    xfree(fp->uf_name_exp);
-    xfree(fp);
-  }
+  assert(fp == NULL);
   xfree(pt);
   if (evalarg != NULL && evalarg->eval_tofree == NULL) {
     evalarg->eval_tofree = tofree;