diff --git a/Tools/scripts/build_parameters.sh b/Tools/scripts/build_parameters.sh
index 4c3e5f7421..b4071aa409 100755
--- a/Tools/scripts/build_parameters.sh
+++ b/Tools/scripts/build_parameters.sh
@@ -27,6 +27,22 @@ generate_parameters() {
     fi
 }
 
+generate_sitl_parameters() {
+    VEHICLE="ArduCopter"
+
+    # generate Parameters.html, Parameters.rst etc etc:
+    ./Tools/autotest/param_metadata/param_parse.py --sitl --vehicle $VEHICLE
+
+    # stash some of the results away:
+    VEHICLE_PARAMS_DIR="$PARAMS_DIR/SITL"
+    mkdir -p "$VEHICLE_PARAMS_DIR"
+    /bin/cp Parameters.html *.pdef.xml "$VEHICLE_PARAMS_DIR/"
+    gzip -9 <"$VEHICLE_PARAMS_DIR"/apm.pdef.xml >"$VEHICLE_PARAMS_DIR"/apm.pdef.xml.gz.new && mv "$VEHICLE_PARAMS_DIR"/apm.pdef.xml.gz.new "$VEHICLE_PARAMS_DIR"/apm.pdef.xml.gz
+    xz -e <"$VEHICLE_PARAMS_DIR"/apm.pdef.xml >"$VEHICLE_PARAMS_DIR"/apm.pdef.xml.xz.new && mv "$VEHICLE_PARAMS_DIR"/apm.pdef.xml.xz.new "$VEHICLE_PARAMS_DIR"/apm.pdef.xml.xz
+    if [ -e "Parameters.rst" ]; then
+	/bin/cp Parameters.rst "$VEHICLE_PARAMS_DIR/"
+    fi
+}
 
 generate_parameters ArduPlane
 
@@ -37,3 +53,5 @@ generate_parameters Rover
 generate_parameters ArduSub
 
 generate_parameters AntennaTracker
+
+generate_sitl_parameters