diff --git a/window/src/os/wayland/window.rs b/window/src/os/wayland/window.rs
index c3520c258..47b239b55 100644
--- a/window/src/os/wayland/window.rs
+++ b/window/src/os/wayland/window.rs
@@ -629,6 +629,9 @@ impl WaylandWindowInner {
                     self.events.dispatch(WindowEvent::Resized {
                         dimensions: self.dimensions,
                         window_state: self.window_state,
+                        // We don't know if we're live resizing or not, so
+                        // assume no.
+                        live_resizing: false,
                     });
                     if let Some(wegl_surface) = self.wegl_surface.as_mut() {
                         wegl_surface.resize(pixel_width, pixel_height, 0, 0);
diff --git a/window/src/os/x11/window.rs b/window/src/os/x11/window.rs
index 0539f77d3..6d8c54a85 100644
--- a/window/src/os/x11/window.rs
+++ b/window/src/os/x11/window.rs
@@ -161,6 +161,7 @@ impl XWindowInner {
                     dpi: self.dpi as usize,
                 },
                 window_state: self.get_window_state().unwrap_or(WindowState::default()),
+                live_resizing: false,
             });
         }
     }
@@ -264,6 +265,9 @@ impl XWindowInner {
                 self.queue_pending(WindowEvent::Resized {
                     dimensions,
                     window_state: self.get_window_state().unwrap_or(WindowState::default()),
+                    // Assume that we're live resizing: we don't know for sure,
+                    // but it seems like a reasonable assumption
+                    live_resizing: true,
                 });
             }
             xcb::KEY_PRESS | xcb::KEY_RELEASE => {