diff --git a/cJSON_Utils.c b/cJSON_Utils.c
index 50463286d9dbcedc322660de39140e131579f664..ad2805c80ab16f4e15c4894fc39aa55f70bc8c46 100644
--- a/cJSON_Utils.c
+++ b/cJSON_Utils.c
@@ -30,6 +30,10 @@
 
 #include "cJSON_Utils.h"
 
+/* define our own boolean type */
+#define true ((cJSON_bool)1)
+#define false ((cJSON_bool)0)
+
 static unsigned char* cJSONUtils_strdup(const unsigned char* const string)
 {
     size_t length = 0;