diff --git a/ArduPlane/Parameters.cpp b/ArduPlane/Parameters.cpp
index c180852694..1c638cd178 100644
--- a/ArduPlane/Parameters.cpp
+++ b/ArduPlane/Parameters.cpp
@@ -1331,6 +1331,13 @@ const AP_Param::ConversionInfo conversion_table[] = {
     { Parameters::k_param_arming,             3,      AP_PARAM_INT8,  "ARMING_RUDDER" },
     { Parameters::k_param_compass_enabled_deprecated,       0,      AP_PARAM_INT8, "COMPASS_ENABLE" },
     { Parameters::k_param_arming,           128,     AP_PARAM_INT16,  "ARMING_CHECK" },
+
+    { Parameters::k_param_fence_minalt,       0,     AP_PARAM_INT16, "FENCE_ALT_MIN"},
+    { Parameters::k_param_fence_maxalt,       0,     AP_PARAM_INT16, "FENCE_ALT_MAX"},
+    { Parameters::k_param_fence_retalt,       0,     AP_PARAM_INT16, "FENCE_RET_ALT"},
+    { Parameters::k_param_fence_action,       0,      AP_PARAM_INT8, "FENCE_ACTION"},
+    { Parameters::k_param_fence_autoenable,   0,      AP_PARAM_INT8, "FENCE_AUTOENABLE"},
+    { Parameters::k_param_fence_ret_rally,    0,      AP_PARAM_INT8, "FENCE_RET_RALLY"},
 };
 
 void Plane::load_parameters(void)
diff --git a/libraries/AC_Fence/AC_Fence.h b/libraries/AC_Fence/AC_Fence.h
index 754bcb96e3..dd13c8ab57 100644
--- a/libraries/AC_Fence/AC_Fence.h
+++ b/libraries/AC_Fence/AC_Fence.h
@@ -193,7 +193,7 @@ private:
     AP_Float        _margin;                // distance in meters that autopilot's should maintain from the fence to avoid a breach
     AP_Int8         _total;                 // number of polygon points saved in eeprom
     AP_Int8         _ret_rally;             // return to fence return point or rally point/home
-    AP_Float        _ret_altitude;          // return to this altitude
+    AP_Int16        _ret_altitude;          // return to this altitude
 
     // backup fences
     float           _alt_max_backup;        // backup altitude upper limit in meters used to refire the breach if the vehicle continues to move further away