diff --git a/include/wlr/xwayland/xwayland.h b/include/wlr/xwayland/xwayland.h
index c3704aad1..f36912b71 100644
--- a/include/wlr/xwayland/xwayland.h
+++ b/include/wlr/xwayland/xwayland.h
@@ -221,6 +221,7 @@ struct wlr_xwayland_surface {
 		struct wl_signal set_startup_id;
 		struct wl_signal set_window_type;
 		struct wl_signal set_hints;
+		struct wl_signal set_size_hints;
 		struct wl_signal set_decorations;
 		struct wl_signal set_strut_partial;
 		struct wl_signal set_override_redirect;
diff --git a/xwayland/xwm.c b/xwayland/xwm.c
index 08ce04394..a6b3208ce 100644
--- a/xwayland/xwm.c
+++ b/xwayland/xwm.c
@@ -239,6 +239,7 @@ static struct wlr_xwayland_surface *xwayland_surface_create(
 	wl_signal_init(&surface->events.set_startup_id);
 	wl_signal_init(&surface->events.set_window_type);
 	wl_signal_init(&surface->events.set_hints);
+	wl_signal_init(&surface->events.set_size_hints);
 	wl_signal_init(&surface->events.set_decorations);
 	wl_signal_init(&surface->events.set_strut_partial);
 	wl_signal_init(&surface->events.set_override_redirect);
@@ -601,6 +602,7 @@ static void xwayland_surface_destroy(struct wlr_xwayland_surface *xsurface) {
 	assert(wl_list_empty(&xsurface->events.set_startup_id.listener_list));
 	assert(wl_list_empty(&xsurface->events.set_window_type.listener_list));
 	assert(wl_list_empty(&xsurface->events.set_hints.listener_list));
+	assert(wl_list_empty(&xsurface->events.set_size_hints.listener_list));
 	assert(wl_list_empty(&xsurface->events.set_decorations.listener_list));
 	assert(wl_list_empty(&xsurface->events.set_strut_partial.listener_list));
 	assert(wl_list_empty(&xsurface->events.set_override_redirect.listener_list));
@@ -951,6 +953,8 @@ static void read_surface_normal_hints(struct wlr_xwm *xwm,
 		xsurface->size_hints->max_width = -1;
 		xsurface->size_hints->max_height = -1;
 	}
+
+	wl_signal_emit_mutable(&xsurface->events.set_size_hints, NULL);
 }
 
 #define MWM_HINTS_FLAGS_FIELD 0