diff --git a/include/wlr/types/wlr_xdg_shell.h b/include/wlr/types/wlr_xdg_shell.h
index db1d7bd5..f54f74e2 100644
--- a/include/wlr/types/wlr_xdg_shell.h
+++ b/include/wlr/types/wlr_xdg_shell.h
@@ -135,9 +135,9 @@ enum wlr_xdg_surface_role {
 struct wlr_xdg_toplevel_state {
 	bool maximized, fullscreen, resizing, activated;
 	uint32_t tiled; // enum wlr_edges
-	uint32_t width, height;
-	uint32_t max_width, max_height;
-	uint32_t min_width, min_height;
+	int32_t width, height;
+	int32_t max_width, max_height;
+	int32_t min_width, min_height;
 };
 
 enum wlr_xdg_toplevel_wm_capabilities {
@@ -156,9 +156,9 @@ struct wlr_xdg_toplevel_configure {
 	uint32_t fields; // enum wlr_xdg_toplevel_configure_field
 	bool maximized, fullscreen, resizing, activated;
 	uint32_t tiled; // enum wlr_edges
-	uint32_t width, height;
+	int32_t width, height;
 	struct {
-		uint32_t width, height;
+		int32_t width, height;
 	} bounds;
 	uint32_t wm_capabilities; // enum wlr_xdg_toplevel_wm_capabilities
 };
@@ -307,7 +307,7 @@ struct wlr_xdg_toplevel_show_window_menu_event {
 	struct wlr_xdg_toplevel *toplevel;
 	struct wlr_seat_client *seat;
 	uint32_t serial;
-	uint32_t x, y;
+	int32_t x, y;
 };
 
 /**
@@ -358,7 +358,7 @@ void wlr_xdg_surface_ping(struct wlr_xdg_surface *surface);
  * configure serial.
  */
 uint32_t wlr_xdg_toplevel_set_size(struct wlr_xdg_toplevel *toplevel,
-		uint32_t width, uint32_t height);
+		int32_t width, int32_t height);
 
 /**
  * Request that this toplevel show itself in an activated or deactivated
diff --git a/types/xdg_shell/wlr_xdg_toplevel.c b/types/xdg_shell/wlr_xdg_toplevel.c
index 420b1de4..54309f96 100644
--- a/types/xdg_shell/wlr_xdg_toplevel.c
+++ b/types/xdg_shell/wlr_xdg_toplevel.c
@@ -101,8 +101,8 @@ struct wlr_xdg_toplevel_configure *send_xdg_toplevel_configure(
 	}
 	assert(nstates <= sizeof(states) / sizeof(states[0]));
 
-	uint32_t width = configure->width;
-	uint32_t height = configure->height;
+	int32_t width = configure->width;
+	int32_t height = configure->height;
 	struct wl_array wl_states = {
 		.size = nstates * sizeof(states[0]),
 		.data = states,
@@ -532,7 +532,7 @@ void wlr_xdg_toplevel_send_close(struct wlr_xdg_toplevel *toplevel) {
 }
 
 uint32_t wlr_xdg_toplevel_set_size(struct wlr_xdg_toplevel *toplevel,
-		uint32_t width, uint32_t height) {
+		int32_t width, int32_t height) {
 	toplevel->scheduled.width = width;
 	toplevel->scheduled.height = height;
 	return wlr_xdg_surface_schedule_configure(toplevel->base);