diff --git a/tf2/test/cache_benchmark.cpp b/tf2/test/cache_benchmark.cpp
index 4d0ea19f..af7241f0 100644
--- a/tf2/test/cache_benchmark.cpp
+++ b/tf2/test/cache_benchmark.cpp
@@ -54,7 +54,7 @@ static void benchmark_insertion(benchmark::State & state)
   }
 
   // Insert data to cache
-  auto insert_data = [&example_items, num_tform, dt](
+  auto insert_data = [ =, &example_items](
     tf2::TimeCache & cache,
     tf2::TimePoint timestamp,
     int step,