diff --git a/libc/include/bits/attrs.h b/libc/include/bits/attrs.h
index c9fa83bd..12e1b0b2 100644
--- a/libc/include/bits/attrs.h
+++ b/libc/include/bits/attrs.h
@@ -3,7 +3,7 @@
 #ifndef _BITS_ATTRS_H
 #define _BITS_ATTRS_H
 
-#if !defined(_STDLIB_H) && !defined(_STRING_H) && !defined(_ASSERT_H) && !defined(_SETJMP_H)
+#if !defined(_STDLIB_H) && !defined(_STRING_H) && !defined(_ASSERT_H) && !defined(_SETJMP_H) && !defined(_SYS_TIME_H)
 #error "Never include bits/attrs.h directly; use one of the standard library headers."
 #endif