diff --git a/src/core/game/PlayerImpl.ts b/src/core/game/PlayerImpl.ts
index 20222e5a3..2b891c59e 100644
--- a/src/core/game/PlayerImpl.ts
+++ b/src/core/game/PlayerImpl.ts
@@ -398,7 +398,7 @@ export class PlayerImpl implements Player {
     if (other === this) {
       return false;
     }
-    if (this.isFriendly(other)) {
+    if (this.isFriendly(other) || !this.isAlive()) {
       return false;
     }
 
diff --git a/tests/AllianceExtensionExecution.test.ts b/tests/AllianceExtensionExecution.test.ts
index 39289c0fe..98bd93af1 100644
--- a/tests/AllianceExtensionExecution.test.ts
+++ b/tests/AllianceExtensionExecution.test.ts
@@ -32,6 +32,7 @@ describe("AllianceExtensionExecution", () => {
   });
 
   test("Successfully extends existing alliance", () => {
+    jest.spyOn(player1, "canSendAllianceRequest").mockReturnValue(true);
     game.addExecution(new AllianceRequestExecution(player1, player2.id()));
     game.executeNextTick();
     game.executeNextTick();
diff --git a/tests/PlayerImpl.test.ts b/tests/PlayerImpl.test.ts
index 24b02e735..7f47a1cd2 100644
--- a/tests/PlayerImpl.test.ts
+++ b/tests/PlayerImpl.test.ts
@@ -98,4 +98,13 @@ describe("PlayerImpl", () => {
 
     expect(ports.length).toBe(3);
   });
+
+  test("Can't send alliance requests when dead", () => {
+    // conquer other
+    const otherTiles = other.tiles();
+    for (const tile of otherTiles) {
+      player.conquer(tile);
+    }
+    expect(other.canSendAllianceRequest(player)).toBe(false);
+  });
 });