diff --git a/src/plugins/splash/space-flares/plugin.c b/src/plugins/splash/space-flares/plugin.c
index 5af99c11..1b28268f 100644
--- a/src/plugins/splash/space-flares/plugin.c
+++ b/src/plugins/splash/space-flares/plugin.c
@@ -759,7 +759,7 @@ star_bg_update (view_t *view, sprite_t *sprite, double time)
                 x = star_bg->star_x[i];
                 y = star_bg->star_y[i];
                 uint32_t pixel_colour = star_bg_gradient_colour (x, y, width, height, true, time);
-                if (abs (((image_data[x + y * width] >> 16) & 0xff) - ((pixel_colour >> 16) & 0xff)) > 8) {
+                if (abs ((int)((image_data[x + y * width] >> 16) & 0xff) - (int)((pixel_colour >> 16) & 0xff)) > 8) {
                         image_data[x + y * width] = pixel_colour;
                         star_bg->star_refresh[i] = 1;
                 }