diff --git a/src/out_json.c b/src/out_json.c
index 6f201e15b..f2e63e24c 100644
--- a/src/out_json.c
+++ b/src/out_json.c
@@ -494,6 +494,7 @@ static char *_path_field (const char *path);
 #define FIELD_RSd(nam, dxf) FIELD (nam, RSd, dxf)
 #define FIELD_RD(nam, dxf) FIELD_BD (nam, dxf)
 #define FIELD_RL(nam, dxf) FIELD (nam, RL, dxf)
+#define FIELD_RLd(nam, dxf) FIELD (nam, RLd, dxf)
 #define FIELD_RLL(nam, dxf) FIELD (nam, RLL, dxf)
 #define FIELD_MC(nam, dxf) FIELD (nam, MC, dxf)
 #define FIELD_MS(nam, dxf) FIELD (nam, MS, dxf)