diff --git a/src/query.c b/src/query.c
index 3aae953..c2899d9 100644
--- a/src/query.c
+++ b/src/query.c
@@ -87,7 +87,7 @@ char* read_post_data(struct query_values* post)
         { "min_id", &(post->min_id) },
         { "max_id", &(post->max_id) },
         { "start_id", &(post->start_id) },
-        { "instance_url", &(post->start_id) },
+        { "instance_url", &(post->instance_url) },
     };
     // END Query references