diff --git a/server/tree.c b/server/tree.c
index 58f6c5c4..ea110000 100644
--- a/server/tree.c
+++ b/server/tree.c
@@ -196,7 +196,6 @@ Shadow* shadow_new(DrawItem *item, const SpicePoint *delta)
 
     shadow->base.type = TREE_ITEM_TYPE_SHADOW;
     shadow->base.container = NULL;
-    shadow->owner = item;
     region_clone(&shadow->base.rgn, &item->base.rgn);
     region_offset(&shadow->base.rgn, delta->x, delta->y);
     ring_item_init(&shadow->base.siblings_link);
diff --git a/server/tree.h b/server/tree.h
index 648725c1..35b78ab0 100644
--- a/server/tree.h
+++ b/server/tree.h
@@ -50,7 +50,6 @@ struct TreeItem {
 struct Shadow {
     TreeItem base;
     QRegion on_hold;
-    DrawItem* owner;
 };
 
 #define IS_SHADOW(item) ((item)->type == TREE_ITEM_TYPE_SHADOW)