diff --git a/mio/lib/json.c b/mio/lib/json.c
index 8cf2825..fe39ef9 100644
--- a/mio/lib/json.c
+++ b/mio/lib/json.c
@@ -1130,7 +1130,7 @@ int mio_jsonwr_write (mio_jsonwr_t* jsonwr, mio_json_inst_t inst, int is_uchars,
 
 		case MIO_JSON_INST_START_OBJECT:
 			if (sn->state != MIO_JSON_STATE_START && sn->state != MIO_JSON_STATE_IN_ARRAY &&
-			    !(sn->state == MIO_JSON_STATE_IN_OBJECT && !sn->obj_awaiting_val)) goto incompatible_inst;
+			    !(sn->state == MIO_JSON_STATE_IN_OBJECT && sn->obj_awaiting_val)) goto incompatible_inst; 
 			if (sn->index > 0) WRITE_COMMA (jsonwr);
 			sn->index++;
 			sn->obj_awaiting_val = 0;