diff --git a/gsk/gskrendernodeimpl.c b/gsk/gskrendernodeimpl.c
index b37a6eed14..3a88afbd9a 100644
--- a/gsk/gskrendernodeimpl.c
+++ b/gsk/gskrendernodeimpl.c
@@ -4872,7 +4872,7 @@ gsk_shadow_node_draw (GskRenderNode *node,
       cairo_mask (cr, pattern);
       cairo_restore (cr);
 
-      cr = gsk_cairo_blur_finish_drawing (cr, shadow->radius, &shadow->color, GSK_BLUR_X | GSK_BLUR_Y);
+      cr = gsk_cairo_blur_finish_drawing (cr, 0.5 * shadow->radius, &shadow->color, GSK_BLUR_X | GSK_BLUR_Y);
       cairo_restore (cr);
     }