diff --git a/libc/bionic/semaphore.cpp b/libc/bionic/semaphore.cpp
index 79b5d63..b30c0b0 100644
--- a/libc/bionic/semaphore.cpp
+++ b/libc/bionic/semaphore.cpp
@@ -235,7 +235,7 @@
   }
 
   // Check it as per POSIX.
-  int result = check_timespec(abs_timeout);
+  int result = check_timespec(abs_timeout, false);
   if (result != 0) {
     errno = result;
     return -1;