diff --git a/userbenchmark/dynamo/dynamobench/_dynamo/utils.py b/userbenchmark/dynamo/dynamobench/_dynamo/utils.py
index 138bd3535..de5edef3b 100644
--- a/userbenchmark/dynamo/dynamobench/_dynamo/utils.py
+++ b/userbenchmark/dynamo/dynamobench/_dynamo/utils.py
@@ -882,6 +882,7 @@ class CompilationMetrics:
     triton_version: Optional[str] = None
     feature_usage: Optional[dict[str, bool]] = None
     compile_time_autotune_time_us: Optional[int] = None
+    gc_time_us: Optional[int] = None
 
 
 DEFAULT_COMPILATION_METRICS_LIMIT = 64