diff --git a/src/out-json.c b/src/out-json.c
index 74d56904..ecc12c2a 100644
--- a/src/out-json.c
+++ b/src/out-json.c
@@ -12,6 +12,7 @@ json_out_open(struct Output *out, FILE *fp)
 {
     UNUSEDPARM(out);
     UNUSEDPARM(fp);
+    fprintf(fp, "[");
 }
 
 
@@ -21,7 +22,7 @@ static void
 json_out_close(struct Output *out, FILE *fp)
 {    
     UNUSEDPARM(out);
-    fprintf(fp, "{finished: 1}\n");
+    fprintf(fp, "{\"finished\": 1}]\n");
 }
 
 //{ ip: "124.53.139.201", ports: [ {port: 443, proto: "tcp", status: "open", reason: "syn-ack", ttl: 48} ] }