--- a/u2f-host/u2fmisc.c	2019-05-15 07:54:11.000000000 -0400
+++ b/u2f-host/u2fmisc.c	2020-05-31 11:19:24.305252337 -0400
@@ -19,6 +19,7 @@
 #include "internal.h"
 
 #include <json.h>
+#include <stdbool.h>
 
 #include "sha256.h"
 
@@ -30,7 +31,7 @@
 #define u2fh_json_object_object_get(obj, key, value) json_object_object_get_ex(obj, key, &value)
 #else
 typedef int json_bool;
-#define u2fh_json_object_object_get(obj, key, value) (value = json_object_object_get(obj, key)) == NULL ? (json_bool)FALSE : (json_bool)TRUE
+#define u2fh_json_object_object_get(obj, key, value) (value = json_object_object_get(obj, key)) == NULL ? (json_bool)false : (json_bool)true
 #endif
 
 static void
@@ -114,7 +115,7 @@
   if (debug)
     fprintf (stderr, "JSON: %s\n", json_object_to_json_string (jo));
 
-  if (u2fh_json_object_object_get (jo, "appId", k) == FALSE)
+  if (u2fh_json_object_object_get (jo, "appId", k) == false)
     return U2FH_JSON_ERROR;
 
   app_id = json_object_get_string (k);
@@ -390,7 +391,7 @@
   if (debug)
     fprintf (stderr, "JSON: %s\n", json_object_to_json_string (jo));
 
-  if (u2fh_json_object_object_get (jo, key, k) == FALSE)
+  if (u2fh_json_object_object_get (jo, key, k) == false)
     return U2FH_JSON_ERROR;
 
   urlb64 = json_object_get_string (k);