diff --git a/src/FDM/LaRCsim.cxx b/src/FDM/LaRCsim.cxx
index 7602bb5d8..f731e6d70 100644
--- a/src/FDM/LaRCsim.cxx
+++ b/src/FDM/LaRCsim.cxx
@@ -313,7 +313,7 @@ int fgLaRCsim_2_FGInterface (FGInterface& f) {
     // f.set_V_true_kts( V_true_kts );
     // f.set_V_rel_ground( V_rel_ground );
     // f.set_V_inertial( V_inertial );
-    // f.set_V_ground_speed( V_ground_speed );
+    f.set_V_ground_speed( V_ground_speed );
     // f.set_V_equiv( V_equiv );
     f.set_V_equiv_kts( V_equiv_kts );
     // f.set_V_calibrated( V_calibrated );
diff --git a/src/FDM/flight.hxx b/src/FDM/flight.hxx
index 529a320ca..204f65799 100644
--- a/src/FDM/flight.hxx
+++ b/src/FDM/flight.hxx
@@ -473,8 +473,8 @@ public:
     // inline double get_V_inertial() const { return v_inertial; }
     // inline void set_V_inertial(double v) { v_inertial = v; }
 
-    // inline double get_V_ground_speed() const { return v_ground_speed; }
-    // inline void set_V_ground_speed( double v) { v_ground_speed = v; }
+    inline double get_V_ground_speed() const { return v_ground_speed; }
+    inline void set_V_ground_speed( double v) { v_ground_speed = v; }
 
     // inline double get_V_equiv() const { return v_equiv; }
     // inline void set_V_equiv( double v ) { v_equiv = v; }