diff --git a/rtengine/StopWatch.h b/rtengine/StopWatch.h
index fa043aa24..2b3ff1baf 100644
--- a/rtengine/StopWatch.h
+++ b/rtengine/StopWatch.h
@@ -24,6 +24,12 @@
 #include <iostream>
 #include "mytime.h"
 
+#ifdef BENCHMARK
+    #define BENCHFUN StopWatch StopFun(__func__);
+#else
+    #define BENCHFUN
+#endif
+
 class StopWatch
 {
 public:
diff --git a/rtengine/amaze_demosaic_RT.cc b/rtengine/amaze_demosaic_RT.cc
index dc2d4316e..46c77d7d7 100644
--- a/rtengine/amaze_demosaic_RT.cc
+++ b/rtengine/amaze_demosaic_RT.cc
@@ -31,12 +31,14 @@
 #include "procparams.h"
 #include "sleef.c"
 #include "opthelper.h"
+#include "StopWatch.h"
 
 namespace rtengine
 {
 
 SSEFUNCTION void RawImageSource::amaze_demosaic_RT(int winx, int winy, int winw, int winh)
 {
+    BENCHFUN
 #define HCLIP(x) x //is this still necessary???
     //min(clip_pt,x)