diff --git a/libc/kernel/common/linux/err.h b/libc/kernel/common/linux/err.h
index 442a1d8..ae0cf3c 100644
--- a/libc/kernel/common/linux/err.h
+++ b/libc/kernel/common/linux/err.h
@@ -22,5 +22,8 @@
 #include <asm/errno.h>
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define MAX_ERRNO 4095
+#ifndef __ASSEMBLY__
 #define IS_ERR_VALUE(x) unlikely((x) >= (unsigned long)-MAX_ERRNO)
 #endif
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#endif