diff --git a/plugins/out_opensearch/opensearch.h b/plugins/out_opensearch/opensearch.h
index e1aa7f3508b..c6421e15fef 100644
--- a/plugins/out_opensearch/opensearch.h
+++ b/plugins/out_opensearch/opensearch.h
@@ -61,7 +61,7 @@ struct flb_opensearch {
     struct flb_record_accessor *ra_index;
 
     char *type;
-    char suppress_type_name;
+    int suppress_type_name;
 
     /* HTTP Auth */
     char *http_user;