diff --git a/lib/std/lang.zig b/lib/std/lang.zig
index 10ed06a85f2493e1acba401f6357855a3325bd39..7f04a24804bc5cafb02fc6d83c8fd7d3fedaeac8 100644
--- a/lib/std/lang.zig
+++ b/lib/std/lang.zig
@@ -1000,10 +1000,9 @@ pub const VaListArm = extern struct {
 /// This data structure is used by the Zig language code generation and
 /// therefore must be kept in sync with the compiler implementation.
 pub const VaListHexagon = extern struct {
-    __gpr: c_long,
-    __fpr: c_long,
-    __overflow_arg_area: *anyopaque,
-    __reg_save_area: *anyopaque,
+    __current_saved_reg_area_pointer: *anyopaque,
+    __saved_reg_area_end_pointer: *anyopaque,
+    __overflow_area_pointer: *anyopaque,
 };
 
 /// This data structure is used by the Zig language code generation and
@@ -1019,9 +1018,10 @@ pub const VaListPowerPc = extern struct {
 /// This data structure is used by the Zig language code generation and
 /// therefore must be kept in sync with the compiler implementation.
 pub const VaListS390x = extern struct {
-    __current_saved_reg_area_pointer: *anyopaque,
-    __saved_reg_area_end_pointer: *anyopaque,
-    __overflow_area_pointer: *anyopaque,
+    __gpr: c_long,
+    __fpr: c_long,
+    __overflow_arg_area: *anyopaque,
+    __reg_save_area: *anyopaque,
 };
 
 /// This data structure is used by the Zig language code generation and