1 files changed, 7 insertions, 3 deletions
diff --git a/libc/spec/stdc.td b/libc/spec/stdc.td
index 1f14fe758130..e012d0dee089 100644
--- a/libc/spec/stdc.td
+++ b/libc/spec/stdc.td
@@ -805,6 +805,10 @@ def StdC : StandardSpec<"stdc"> {
   HeaderSpec StdBit = HeaderSpec<
       "stdbit.h",
       [
+        Macro<"__STDC_VERSION_STDBIT_H__">,
+        Macro<"__STDC_ENDIAN_LITTLE__">,
+        Macro<"__STDC_ENDIAN_BIG__">,
+        Macro<"__STDC_ENDIAN_NATIVE__">,
         Macro<"stdc_leading_zeros">,
         Macro<"stdc_leading_ones">,
         Macro<"stdc_trailing_zeros">,
@@ -816,9 +820,9 @@ def StdC : StandardSpec<"stdc"> {
         Macro<"stdc_count_zeros">,
         Macro<"stdc_count_ones">,
         Macro<"stdc_has_single_bit">,
-        Macro<"std_bit_width">,
-        Macro<"std_bit_floor">,
-        Macro<"std_bit_ceil">
+        Macro<"stdc_bit_width">,
+        Macro<"stdc_bit_floor">,
+        Macro<"stdc_bit_ceil">
       ], // Macros
       [], // Types
       [], // Enumerations