diff --git a/contrib/ntp/ntpd/ntpd.c b/contrib/ntp/ntpd/ntpd.c
index bcfca27a535..2ed3046c264 100644
--- a/contrib/ntp/ntpd/ntpd.c
+++ b/contrib/ntp/ntpd/ntpd.c
@@ -790,6 +790,13 @@ ntpdmain(
 	int		fd;
 	int		zero;
 # endif
+	int		aslr = 0;
+	int		aslr_len = sizeof(aslr);
+#ifdef __LP64__
+	char		*aslr_var = "kern.elf64.aslr.enable";
+#else
+	char		*aslr_var = "kern.elf32.aslr.enable";
+#endif
 
 # ifdef NEED_PTHREAD_WARMUP
 	my_pthread_warmup();
@@ -998,7 +1005,15 @@ ntpdmain(
 	/* Setup stack size in preparation for locking pages in memory. */
 # if defined(HAVE_MLOCKALL)
 #  ifdef HAVE_SETRLIMIT
-	ntp_rlimit(RLIMIT_STACK, DFLT_RLIMIT_STACK * 4096, 4096, "4k");
+	
+	if ((rc = sysctlbyname(aslr_var, aslr, &aslr_len, NULL, 0)) != 0))
+		msyslog(LOG_ERR,
+			"sysctlbyname: %s: %s",
+			aslr_var,
+			strerror(rc));
+
+	if (aslr == 0)
+		ntp_rlimit(RLIMIT_STACK, DFLT_RLIMIT_STACK * 4096, 4096, "4k");
 #   if defined(RLIMIT_MEMLOCK) && defined(DFLT_RLIMIT_MEMLOCK) && DFLT_RLIMIT_MEMLOCK != -1
 	/*
 	 * The default RLIMIT_MEMLOCK is very low on Linux systems.