diff --git a/src/rock.cpp b/src/rock.cpp
index b53e64cf3ad3c610cdefdd6223e73e01b9e49fc8..7bd1657d0eb7149d4117244f83a169cb865334b1 100644
--- a/src/rock.cpp
+++ b/src/rock.cpp
@@ -33,7 +33,7 @@
 using namespace std;
 
 
-// #define BENCHMARK
+//#define BENCHMARK
 #ifdef BENCHMARK
 #include <sys/time.h>
 #include <sys/resource.h>