diff --git a/src/client/graphics/GameRenderer.ts b/src/client/graphics/GameRenderer.ts
index 9cc5b8282..9b2240732 100644
--- a/src/client/graphics/GameRenderer.ts
+++ b/src/client/graphics/GameRenderer.ts
@@ -145,6 +145,7 @@ export function createRenderer(
   playerPanel.g = game;
   playerPanel.eventBus = eventBus;
   playerPanel.emojiTable = emojiTable;
+  playerPanel.uiState = uiState;
 
   const chatModal = document.querySelector("chat-modal") as ChatModal;
   if (!(chatModal instanceof ChatModal)) {
diff --git a/src/client/graphics/layers/PlayerPanel.ts b/src/client/graphics/layers/PlayerPanel.ts
index a8b773b15..d9afeab4a 100644
--- a/src/client/graphics/layers/PlayerPanel.ts
+++ b/src/client/graphics/layers/PlayerPanel.ts
@@ -24,6 +24,7 @@ import {
   SendTargetPlayerIntentEvent,
 } from "../../Transport";
 import { renderNumber, renderTroops } from "../../Utils";
+import { UIState } from "../UIState";
 import { ChatModal } from "./ChatModal";
 import { EmojiTable } from "./EmojiTable";
 import { Layer } from "./Layer";
@@ -33,6 +34,7 @@ export class PlayerPanel extends LitElement implements Layer {
   public g: GameView;
   public eventBus: EventBus;
   public emojiTable: EmojiTable;
+  public uiState: UIState;
 
   private actions: PlayerActions | null = null;
   private tile: TileRef | null = null;
@@ -86,7 +88,13 @@ export class PlayerPanel extends LitElement implements Layer {
     other: PlayerView,
   ) {
     e.stopPropagation();
-    this.eventBus.emit(new SendDonateTroopsIntentEvent(myPlayer, other, null));
+    this.eventBus.emit(
+      new SendDonateTroopsIntentEvent(
+        myPlayer,
+        other,
+        myPlayer.troops() * this.uiState.attackRatio,
+      ),
+    );
     this.hide();
   }