diff --git a/src/header/sys_resource/cbindgen.toml b/src/header/sys_resource/cbindgen.toml
index 3d0766cec4..43b32e07c4 100644
--- a/src/header/sys_resource/cbindgen.toml
+++ b/src/header/sys_resource/cbindgen.toml
@@ -1,7 +1,5 @@
-# stdint.h needed for uint64_t due to rlim_t and constants u64
-# TODO POSIX says rlim_t can be unsigned int but including stdint.h is considered namespace pollution
 # sys/time.h brings in sys/select.h which brings in bits/timeval.h
-sys_includes = ["stdint.h", "sys/time.h"]
+sys_includes = ["sys/time.h"]
 after_includes = """
 #include <bits/id-t.h> // for id_t from sys/types.h
 """
diff --git a/src/header/sys_resource/mod.rs b/src/header/sys_resource/mod.rs
index 93714bae6f..83bbbab2e8 100644
--- a/src/header/sys_resource/mod.rs
+++ b/src/header/sys_resource/mod.rs
@@ -8,7 +8,7 @@ use crate::{
     out::Out,
     platform::{
         Pal, Sys,
-        types::{c_int, c_long, id_t},
+        types::{c_int, c_long, c_ulonglong, id_t},
     },
 };
 
@@ -38,7 +38,7 @@ pub const RLIMIT_NICE: c_int = 13;
 pub const RLIMIT_RTPRIO: c_int = 14;
 pub const RLIMIT_NLIMITS: c_int = 15;
 
-pub type rlim_t = u64;
+pub type rlim_t = c_ulonglong;
 
 #[repr(C)]
 pub struct rlimit {