diff --git a/src/Grid/grid_dist_id.hpp b/src/Grid/grid_dist_id.hpp
index 6c4400c940bba3efb8362edd13a32dbf8f9c6dc5..14fed24a6277cf83176fa9407fdd36b996e56128 100644
--- a/src/Grid/grid_dist_id.hpp
+++ b/src/Grid/grid_dist_id.hpp
@@ -64,6 +64,9 @@ class grid_dist_id
 	//! It map a global ghost id (g_id) to the external ghost box information
 	std::unordered_map<size_t,size_t> g_id_to_external_ghost_box;
 
+	//!
+	openfpm::vector<conflict_res>
+
 	/*! \brief Get the grid size
 	 *
 	 * Given a domain, the resolution of the grid on it and another spaceBox contained in the domain