diff --git a/src/header/stdio/cbindgen.toml b/src/header/stdio/cbindgen.toml
index 7a6860140b..bd89ea3b36 100644
--- a/src/header/stdio/cbindgen.toml
+++ b/src/header/stdio/cbindgen.toml
@@ -1,4 +1,9 @@
-sys_includes = ["stdarg.h", "stddef.h", "stdint.h", "sys/types.h", "features.h"]
+# stddef.h brings in size_t
+sys_includes = ["stdarg.h", "stddef.h", "stdint.h", "features.h"]
+after_includes = """
+#include <bits/off-t.h>   // for off_t from sys/types.h
+#include <bits/ssize-t.h> // for ssize_t from sys/types.h
+"""
 include_guard = "_RELIBC_STDIO_H"
 trailer = """
 #ifndef _RELIBC_BITS_STDIO_H