diff --git a/unbound-1.7.3/daemon/unbound.c b/unbound-1.7.3/daemon/unbound.c
index 1383110..66ed61d 100644
--- a/daemon/unbound.c
+++ b/daemon/unbound.c
@@ -327,18 +327,32 @@ readpid (const char* file)
 static void
 writepid (const char* pidfile, pid_t pid)
 {
-	FILE* f;
+	int fd;
+	char pidbuf[32];
+	size_t count = 0;
+	snprintf(pidbuf, sizeof(pidbuf), "%lu\n", (unsigned long)pid);
 
-	if ((f = fopen(pidfile, "w")) ==  NULL ) {
+    if((fd = open(pidfile, O_WRONLY | O_CREAT | O_TRUNC
+#ifdef O_NOFOLLOW
+		| O_NOFOLLOW
+#endif
+		, 0644)) == -1) {
 		log_err("cannot open pidfile %s: %s", 
 			pidfile, strerror(errno));
 		return;
 	}
-	if(fprintf(f, "%lu\n", (unsigned long)pid) < 0) {
-		log_err("cannot write to pidfile %s: %s", 
-			pidfile, strerror(errno));
+    while(count < strlen(pidbuf)) {
+		ssize_t r = write(fd, pidbuf+count, strlen(pidbuf)-count);
+		if(r == -1) {
+			if(errno == EAGAIN || errno == EINTR)
+				continue;
+			log_err("cannot write to pidfile %s: %s",
+				pidfile, strerror(errno));
+			break;
+		}
+		count += r;
 	}
-	fclose(f);
+	close(fd);
 }
 
 /**