diff --git a/gcc/fortran/trans-intrinsic.c b/gcc/fortran/trans-intrinsic.c
index 5c9258c65c3..ae359a07973 100644
--- a/gcc/fortran/trans-intrinsic.c
+++ b/gcc/fortran/trans-intrinsic.c
@@ -407,7 +407,10 @@ build_round_expr (tree arg, tree restype)
       if (kind < 0)
 	gfc_internal_error ("Could not find real kind with at least %d bits",
 			    resprec);
-      arg = fold_convert (gfc_float128_type_node, arg);
+      if (gfc_real16_is_float128)
+	arg = fold_convert (gfc_float128_type_node, arg);
+      else
+	arg = fold_convert (long_double_type_node, arg);
       fn = gfc_builtin_decl_for_float_kind (BUILT_IN_ROUND, kind);
     }
   else