diff --git a/scheduled_host_transition_main.cpp b/scheduled_host_transition_main.cpp
index 6835d5d..aaecd39 100644
--- a/scheduled_host_transition_main.cpp
+++ b/scheduled_host_transition_main.cpp
@@ -17,8 +17,8 @@
     int arg;
     int optIndex = 0;
 
-    static struct option longOpts[] = {{"host", required_argument, 0, 'h'},
-                                       {0, 0, 0, 0}};
+    static struct option longOpts[] = {
+        {"host", required_argument, nullptr, 'h'}, {nullptr, 0, nullptr, 0}};
 
     while ((arg = getopt_long(argc, argv, "h:", longOpts, &optIndex)) != -1)
     {