diff --git a/codex-rs/core/tests/suite/compact.rs b/codex-rs/core/tests/suite/compact.rs
index 135061d248..767512443b 100644
--- a/codex-rs/core/tests/suite/compact.rs
+++ b/codex-rs/core/tests/suite/compact.rs
@@ -1923,9 +1923,9 @@ async fn auto_compact_triggers_after_function_call_over_95_percent_usage() {
 
     let server = start_mock_server().await;
 
-    let context_window = 100;
-    let limit = context_window * 90 / 100;
-    let over_limit_tokens = context_window * 95 / 100 + 1;
+    let context_window = 200;
+    let limit = context_window / 2;
+    let over_limit_tokens = limit + 20;
     let follow_up_user = "FOLLOW_UP_AFTER_LIMIT";
 
     let first_turn = sse(vec![