diff --git a/libc/include/pthread.h b/libc/include/pthread.h
index 461bb44..a2a6789 100644
--- a/libc/include/pthread.h
+++ b/libc/include/pthread.h
@@ -243,7 +243,6 @@
 // TODO: Remove them once chromium_org / NFC have switched over.
 int pthread_cond_timedwait_monotonic_np(pthread_cond_t*, pthread_mutex_t*, const struct timespec*);
 int pthread_cond_timedwait_monotonic(pthread_cond_t*, pthread_mutex_t*, const struct timespec*);
-#define HAVE_PTHREAD_COND_TIMEDWAIT_MONOTONIC 1
 
 int pthread_cond_timedwait_relative_np(pthread_cond_t*, pthread_mutex_t*, const struct timespec*) /* TODO: __attribute__((deprecated("use pthread_cond_timedwait instead")))*/;
 #define HAVE_PTHREAD_COND_TIMEDWAIT_RELATIVE 1 /* TODO: stop defining this to push LP32 off this API sooner. */