diff --git a/libresapi/src/api/json.cpp b/libresapi/src/api/json.cpp
index 16f238f39..82c598341 100644
--- a/libresapi/src/api/json.cpp
+++ b/libresapi/src/api/json.cpp
@@ -19,7 +19,6 @@
  * along with this program. If not, see <https://www.gnu.org/licenses/>.       *
  *                                                                             *
  *******************************************************************************/
-#define nullptr 0
 
 #include "json.h"
 #include <stdlib.h>
@@ -33,6 +32,7 @@
 #include <cctype>
 #include <stack>
 #include <cerrno>
+#include "util/cxx11retrocompat.h"
 
 #ifndef WIN32
 #define _stricmp strcasecmp