diff --git a/lib/crates/fabro-server/tests/it/scenario/usage.rs b/lib/crates/fabro-server/tests/it/scenario/usage.rs
index 976e0bf69..318cf6650 100644
--- a/lib/crates/fabro-server/tests/it/scenario/usage.rs
+++ b/lib/crates/fabro-server/tests/it/scenario/usage.rs
@@ -150,5 +150,8 @@ fn assert_non_llm_billing(billing: &serde_json::Value, expected_stage_ids: &[&st
     let total_runtime_secs = billing["totals"]["runtime_secs"]
         .as_f64()
         .expect("totals should include runtime_secs");
-    assert_eq!(total_runtime_secs, runtime_secs);
+    assert!(
+        (total_runtime_secs - runtime_secs).abs() < f64::EPSILON,
+        "total_runtime_secs ({total_runtime_secs}) should equal sum of stage runtimes ({runtime_secs})"
+    );
 }