diff --git a/libc/kernel/tools/defaults.py b/libc/kernel/tools/defaults.py
index 67ab702..2efd455 100644
--- a/libc/kernel/tools/defaults.py
+++ b/libc/kernel/tools/defaults.py
@@ -44,7 +44,11 @@
 kernel_default_arch_macros = {
     "arm": {"__ARMEB__": kCppUndefinedMacro, "__ARM_EABI__": "1"},
     "arm64": {},
-    "mips": {"CONFIG_32BIT":"1", "__MIPSEB__": kCppUndefinedMacro, "__MIPSEL__": "1"},
+    "mips": {"__MIPSEB__": kCppUndefinedMacro,
+             "__MIPSEL__": "1",
+             "CONFIG_32BIT": "_ABIO32",
+             "CONFIG_CPU_LITTLE_ENDIAN": "1",
+             "__SANE_USERSPACE_TYPES__": "1",},
     "x86": {},
     }