diff --git a/main.cpp b/main.cpp
index 8f0bfd2..3b76b46 100644
--- a/main.cpp
+++ b/main.cpp
@@ -199,7 +199,7 @@ void run()
       << "num_times"  << csv_separator
       << "n_elements"  << csv_separator
       << "sizeof"  << csv_separator
-      << "max_mbytes_per_sec"<< csv_separator
+      << "max_mbytes_per_sec" << csv_separator
       << "min_runtime" << csv_separator
       << "max_runtime" << csv_separator
       << "avg_runtime" << std::endl;