diff --git a/libc/private/bionic_time_conversions.h b/libc/private/bionic_time_conversions.h
index a834843..b9eaad2 100644
--- a/libc/private/bionic_time_conversions.h
+++ b/libc/private/bionic_time_conversions.h
@@ -42,9 +42,6 @@
 
 __LIBC_HIDDEN__ void timeval_from_timespec(timeval& tv, const timespec& ts);
 
-__LIBC_HIDDEN__ void absolute_timespec_from_timespec(timespec& abs_ts, const timespec& ts,
-                                                     clockid_t clock);
-
 __END_DECLS
 
 static inline int check_timespec(const timespec* ts, bool null_allowed) {
@@ -62,4 +59,16 @@
   return 0;
 }
 
+#if !defined(__LP64__)
+static inline void absolute_timespec_from_timespec(timespec& abs_ts, const timespec& ts, clockid_t clock) {
+  clock_gettime(clock, &abs_ts);
+  abs_ts.tv_sec += ts.tv_sec;
+  abs_ts.tv_nsec += ts.tv_nsec;
+  if (abs_ts.tv_nsec >= NS_PER_S) {
+    abs_ts.tv_nsec -= NS_PER_S;
+    abs_ts.tv_sec++;
+  }
+}
+#endif
+
 #endif