diff --git a/src/core/receiver/gnss_flowgraph.cc b/src/core/receiver/gnss_flowgraph.cc
index 23827ba70..8ef37b7c3 100644
--- a/src/core/receiver/gnss_flowgraph.cc
+++ b/src/core/receiver/gnss_flowgraph.cc
@@ -724,7 +724,7 @@ void GNSSFlowgraph::set_signals_list()
                     available_gnss_prn_iter++)
                 {
                     available_GNSS_signals_.push_back(Gnss_Signal(Gnss_Satellite(std::string("Glonass"),
-                            *available_gnss_prn_iter), std::string("5X")));
+                            *available_gnss_prn_iter), std::string("1G")));
                 }
         }
     /*