diff --git a/backend/x11/backend.c b/backend/x11/backend.c
index 3f2a9f01..dbee4379 100644
--- a/backend/x11/backend.c
+++ b/backend/x11/backend.c
@@ -638,7 +638,7 @@ struct wlr_backend *wlr_x11_backend_create(struct wl_display *display,
 	}
 #endif
 
-	wlr_keyboard_init(&x11->keyboard, &keyboard_impl, "x11-keyboard");
+	wlr_keyboard_init(&x11->keyboard, &x11_keyboard_impl, "x11-keyboard");
 
 	x11->display_destroy.notify = handle_display_destroy;
 	wl_display_add_destroy_listener(display, &x11->display_destroy);
diff --git a/backend/x11/input_device.c b/backend/x11/input_device.c
index a020442a..a2d7ef53 100644
--- a/backend/x11/input_device.c
+++ b/backend/x11/input_device.c
@@ -286,19 +286,11 @@ void handle_x11_xinput_event(struct wlr_x11_backend *x11,
 	}
 }
 
-static void input_device_destroy(struct wlr_input_device *wlr_device) {
-	// Don't free the input device, it's on the stack
-}
-
-const struct wlr_input_device_impl input_device_impl = {
-	.destroy = input_device_destroy,
-};
-
 static void keyboard_destroy(struct wlr_keyboard *wlr_keyboard) {
 	// Don't free the keyboard, it's on the stack
 }
 
-const struct wlr_keyboard_impl keyboard_impl = {
+const struct wlr_keyboard_impl x11_keyboard_impl = {
 	.destroy = keyboard_destroy,
 };
 
@@ -306,7 +298,7 @@ static void pointer_destroy(struct wlr_pointer *wlr_pointer) {
 	// Don't free the pointer, it's on the stack
 }
 
-const struct wlr_pointer_impl pointer_impl = {
+const struct wlr_pointer_impl x11_pointer_impl = {
 	.destroy = pointer_destroy,
 };
 
@@ -314,7 +306,7 @@ static void touch_destroy(struct wlr_touch *wlr_touch) {
 	// Don't free the touch, it's on the stack
 }
 
-const struct wlr_touch_impl touch_impl = {
+const struct wlr_touch_impl x11_touch_impl = {
 	.destroy = touch_destroy,
 };
 
@@ -338,12 +330,12 @@ void update_x11_pointer_position(struct wlr_x11_output *output,
 bool wlr_input_device_is_x11(struct wlr_input_device *wlr_dev) {
 	switch (wlr_dev->type) {
 	case WLR_INPUT_DEVICE_KEYBOARD:
-		return wlr_dev->keyboard->impl == &keyboard_impl;
+		return wlr_dev->keyboard->impl == &x11_keyboard_impl;
 	case WLR_INPUT_DEVICE_POINTER:
-		return wlr_dev->pointer->impl == &pointer_impl;
+		return wlr_dev->pointer->impl == &x11_pointer_impl;
 	case WLR_INPUT_DEVICE_TOUCH:
-		return wlr_dev->touch->impl == &touch_impl;
+		return wlr_dev->touch->impl == &x11_touch_impl;
 	default:
-		return wlr_dev->impl == &input_device_impl;
+		return false;
 	}
 }
diff --git a/backend/x11/output.c b/backend/x11/output.c
index 0900a60a..7037c36c 100644
--- a/backend/x11/output.c
+++ b/backend/x11/output.c
@@ -573,10 +573,10 @@ struct wlr_output *wlr_x11_output_create(struct wlr_backend *backend) {
 
 	wlr_output_update_enabled(wlr_output, true);
 
-	wlr_pointer_init(&output->pointer, &pointer_impl, "x11-pointer");
+	wlr_pointer_init(&output->pointer, &x11_pointer_impl, "x11-pointer");
 	output->pointer.base.output_name = strdup(wlr_output->name);
 
-	wlr_touch_init(&output->touch, &touch_impl, "x11-touch");
+	wlr_touch_init(&output->touch, &x11_touch_impl, "x11-touch");
 	output->touch.base.output_name = strdup(wlr_output->name);
 	wl_list_init(&output->touchpoints);
 
diff --git a/include/backend/x11.h b/include/backend/x11.h
index 2c039355..572fce18 100644
--- a/include/backend/x11.h
+++ b/include/backend/x11.h
@@ -15,7 +15,6 @@
 
 #include <pixman.h>
 #include <wlr/backend/x11.h>
-#include <wlr/interfaces/wlr_input_device.h>
 #include <wlr/interfaces/wlr_keyboard.h>
 #include <wlr/interfaces/wlr_output.h>
 #include <wlr/interfaces/wlr_touch.h>
@@ -127,10 +126,9 @@ struct wlr_x11_backend *get_x11_backend_from_backend(
 struct wlr_x11_output *get_x11_output_from_window_id(
 	struct wlr_x11_backend *x11, xcb_window_t window);
 
-extern const struct wlr_keyboard_impl keyboard_impl;
-extern const struct wlr_pointer_impl pointer_impl;
-extern const struct wlr_touch_impl touch_impl;
-extern const struct wlr_input_device_impl input_device_impl;
+extern const struct wlr_keyboard_impl x11_keyboard_impl;
+extern const struct wlr_pointer_impl x11_pointer_impl;
+extern const struct wlr_touch_impl x11_touch_impl;
 
 void handle_x11_xinput_event(struct wlr_x11_backend *x11,
 		xcb_ge_generic_event_t *event);