diff --git a/plugins/out_es/es.h b/plugins/out_es/es.h
index 67efc9e0442..a3f1ecadf98 100644
--- a/plugins/out_es/es.h
+++ b/plugins/out_es/es.h
@@ -40,7 +40,7 @@ struct flb_elasticsearch {
     /* Elasticsearch index (database) and type (table) */
     char *index;
     char *type;
-    char suppress_type_name;
+    int suppress_type_name;
 
     /* HTTP Auth */
     char *http_user;