diff --git a/Backends/Kinc-HL/kinc-bridge/system.c.h b/Backends/Kinc-HL/kinc-bridge/system.c.h
index 88c791d33..83f4d5a40 100644
--- a/Backends/Kinc-HL/kinc-bridge/system.c.h
+++ b/Backends/Kinc-HL/kinc-bridge/system.c.h
@@ -94,11 +94,11 @@ void hl_kinc_system_load_url(vbyte *url) {
 }
 
 vbyte *hl_kinc_get_gamepad_id(int index) {
-	return (vbyte*)kinc_gamepad_product_name(index);
+	return (vbyte *)kinc_gamepad_product_name(index);
 }
 
 vbyte *hl_kinc_get_gamepad_vendor(int index) {
-	return (vbyte*)kinc_gamepad_vendor(index);
+	return (vbyte *)kinc_gamepad_vendor(index);
 }
 
 bool hl_kinc_gamepad_connected(int index) {
@@ -137,12 +137,12 @@ void hl_kinc_register_pen(vclosure *penDown, vclosure *penUp, vclosure *penMove)
 	kinc_pen_set_move_callback(*((FN_PEN_MOVE *)(&penMove->fun)));
 }
 
-typedef void (*FN_GAMEPAD_AXIS)(int, int, float);
-typedef void (*FN_GAMEPAD_BUTTON)(int, int, float);
+typedef void (*FN_GAMEPAD_AXIS)(int, int, float, void *);
+typedef void (*FN_GAMEPAD_BUTTON)(int, int, float, void *);
 
 void hl_kinc_register_gamepad(vclosure *gamepadAxis, vclosure *gamepadButton) {
-	kinc_gamepad_set_axis_callback(*((FN_GAMEPAD_AXIS *)(&gamepadAxis->fun)));
-	kinc_gamepad_set_button_callback(*((FN_GAMEPAD_BUTTON *)(&gamepadButton->fun)));
+	kinc_gamepad_set_axis_callback(*((FN_GAMEPAD_AXIS *)(&gamepadAxis->fun)), NULL);
+	kinc_gamepad_set_button_callback(*((FN_GAMEPAD_BUTTON *)(&gamepadButton->fun)), NULL);
 }
 
 typedef void (*FN_TOUCH_START)(int, int, int);
diff --git a/Backends/Kinc-hxcpp/main.cpp b/Backends/Kinc-hxcpp/main.cpp
index 8ca4f7fb3..77829a3cb 100644
--- a/Backends/Kinc-hxcpp/main.cpp
+++ b/Backends/Kinc-hxcpp/main.cpp
@@ -29,7 +29,7 @@
 #include <stdlib.h>
 
 #ifdef ANDROID
-//#include <Kore/Vr/VrInterface.h>
+// #include <Kore/Vr/VrInterface.h>
 #endif
 
 namespace {
@@ -103,11 +103,11 @@ namespace {
 		Sensor_obj::_changed(1, x, y, z);
 	}
 
-	void gamepadAxis(int gamepad, int axis, float value) {
+	void gamepadAxis(int gamepad, int axis, float value, void *data) {
 		SystemImpl_obj::gamepadAxis(gamepad, axis, value);
 	}
 
-	void gamepadButton(int gamepad, int button, float value) {
+	void gamepadButton(int gamepad, int button, float value, void *data) {
 		SystemImpl_obj::gamepadButton(gamepad, button, value);
 	}
 
@@ -311,8 +311,8 @@ void init_kinc(const char *name, int width, int height, kinc_window_options_t *w
 	kinc_eraser_set_press_callback(penEraserDown);
 	kinc_eraser_set_release_callback(penEraserUp);
 	kinc_eraser_set_move_callback(penEraserMove);
-	kinc_gamepad_set_axis_callback(gamepadAxis);
-	kinc_gamepad_set_button_callback(gamepadButton);
+	kinc_gamepad_set_axis_callback(gamepadAxis, nullptr);
+	kinc_gamepad_set_button_callback(gamepadButton, nullptr);
 	kinc_surface_set_touch_start_callback(touchStart);
 	kinc_surface_set_touch_end_callback(touchEnd);
 	kinc_surface_set_move_callback(touchMove);
diff --git a/Kinc b/Kinc
index 4d29c8c6c..38416f1a8 160000
--- a/Kinc
+++ b/Kinc
@@ -1 +1 @@
-Subproject commit 4d29c8c6c3e15f5c88df04ecf6a78800d50339df
+Subproject commit 38416f1a8cf759a648329d4b75cc72803f513bc6