diff --git a/bulk_index.sh b/bulk_index.sh
index e39f480..50ead1e 100644
--- a/bulk_index.sh
+++ b/bulk_index.sh
@@ -6,5 +6,5 @@ while read LINE; do
     echo '{"index": {"_index":"cowrie","_type":"cowrieevents"}}' >> /tmp/cowrieevents.json
     echo $LINE >> /tmp/cowrieevents.json
 done <"$1"
-curl -s XPOST --data-binary @/tmp/cowrieevents.json localhost:9200/_bulk
+curl -s XPOST -H'Content-Type: application/json' --data-binary @/tmp/cowrieevents.json localhost:9200/_bulk
 rm /tmp/cowrieevents.json