diff --git a/libc/include/llvm-libc-macros/generic-error-number-macros.h b/libc/include/llvm-libc-macros/generic-error-number-macros.h
index b5b1b676dacc35..cb4411fbac665f 100644
--- a/libc/include/llvm-libc-macros/generic-error-number-macros.h
+++ b/libc/include/llvm-libc-macros/generic-error-number-macros.h
@@ -43,7 +43,6 @@
 #define EPIPE 32
 #define EDOM 33
 #define ERANGE 34
-#define EILSEQ 35
 #define ENAMETOOLONG 36
 #define EOVERFLOW 75