diff --git a/lib/std/c.zig b/lib/std/c.zig
index 3e7aa19ced3c..81eeba31f6a9 100644
--- a/lib/std/c.zig
+++ b/lib/std/c.zig
@@ -9907,7 +9907,6 @@ pub const mach_msg_option_t = darwin.mach_msg_option_t;
 pub const mach_msg_size_t = darwin.mach_msg_size_t;
 pub const mach_msg_timeout_t = darwin.mach_msg_timeout_t;
 pub const mach_msg_type_name_t = darwin.mach_msg_type_name_t;
-pub const mach_port_array_t = darwin.mach_port_array_t;
 pub const mach_port_right_t = darwin.mach_port_right_t;
 pub const memory_object_offset_t = darwin.memory_object_offset_t;
 pub const policy_t = darwin.policy_t;
@@ -9916,7 +9915,6 @@ pub const task_policy_t = darwin.task_policy_t;
 pub const task_t = darwin.task_t;
 pub const thread_act_t = darwin.thread_act_t;
 pub const thread_flavor_t = darwin.thread_flavor_t;
-pub const thread_info_t = darwin.thread_info_t;
 pub const thread_port_t = darwin.thread_port_t;
 pub const thread_state_flavor_t = darwin.thread_state_flavor_t;
 pub const thread_state_t = darwin.thread_state_t;