diff --git a/src/tdcp.cpp b/src/tdcp.cpp
index 783f738183e3935f254ac7bdf371e3cc3c0d4e77..986455c89b609a14dac1a7e82b16fa8111aa788a 100644
--- a/src/tdcp.cpp
+++ b/src/tdcp.cpp
@@ -204,7 +204,7 @@ bool Tdcp(SnapshotPtr               snapshot_r,
         // Satellite's positions
         s_r.col(row) = snapshot_r->getSatellites().at(sat_number).pos;
         s_k.col(row) = snapshot_r->getSatellites().at(sat_number).pos;
-        nav_k.ion_gps;
+        //        nav_k.ion_gps;
 
         drho_m(row) = (obs_k.L[freq] * nav_k.lam[sat_number - 1][freq]) -
                       (obs_r.L[freq] * nav_r.lam[sat_number - 1][freq]);