diff --git a/libweston/compositor-drm.c b/libweston/compositor-drm.c
index 3cb8f7ec..72696d56 100644
--- a/libweston/compositor-drm.c
+++ b/libweston/compositor-drm.c
@@ -2995,7 +2995,7 @@ session_notify(struct wl_listener *listener, void *data)
 		 * pending frame callbacks. */
 
 		wl_list_for_each(output, &compositor->output_list, base.link) {
-			output->base.repaint_needed = 0;
+			output->base.repaint_needed = false;
 			drmModeSetCursor(b->drm.fd, output->crtc_id, 0, 0, 0);
 		}
 
diff --git a/libweston/compositor-fbdev.c b/libweston/compositor-fbdev.c
index 44f0cf51..6f976d17 100644
--- a/libweston/compositor-fbdev.c
+++ b/libweston/compositor-fbdev.c
@@ -693,7 +693,7 @@ session_notify(struct wl_listener *listener, void *data)
 
 		wl_list_for_each(output,
 				 &compositor->output_list, link) {
-			output->repaint_needed = 0;
+			output->repaint_needed = false;
 		}
 	}
 }
diff --git a/libweston/compositor.c b/libweston/compositor.c
index 49626183..80268bcd 100644
--- a/libweston/compositor.c
+++ b/libweston/compositor.c
@@ -2310,7 +2310,7 @@ weston_output_repaint(struct weston_output *output)
 
 	pixman_region32_fini(&output_damage);
 
-	output->repaint_needed = 0;
+	output->repaint_needed = false;
 
 	weston_compositor_repick(ec);
 
@@ -2549,7 +2549,7 @@ weston_output_schedule_repaint(struct weston_output *output)
 		TL_POINT("core_repaint_req", TLP_OUTPUT(output), TLP_END);
 
 	loop = wl_display_get_event_loop(compositor->wl_display);
-	output->repaint_needed = 1;
+	output->repaint_needed = true;
 	if (output->repaint_scheduled)
 		return;
 
diff --git a/libweston/compositor.h b/libweston/compositor.h
index 08e728a9..45dcb6d4 100644
--- a/libweston/compositor.h
+++ b/libweston/compositor.h
@@ -170,7 +170,10 @@ struct weston_output {
 	pixman_region32_t region;
 
 	pixman_region32_t previous_damage;
-	int repaint_needed;
+
+	/** True if damage has occurred since the last repaint for this output;
+	 *  if set, a repaint will eventually occur. */
+	bool repaint_needed;
 	int repaint_scheduled;
 	struct wl_event_source *repaint_timer;
 	struct weston_output_zoom zoom;