diff --git a/src/misc_utilities/benchmarks/benchmark.cpp b/src/misc_utilities/benchmarks/benchmark.cpp
index 0130e30..04ab4a7 100644
--- a/src/misc_utilities/benchmarks/benchmark.cpp
+++ b/src/misc_utilities/benchmarks/benchmark.cpp
@@ -134,7 +134,8 @@ int main( int argc, const char** argv )
   else if (benchmarkName.compare("detection") == 0)
   {
     Config config(country);
-    Detector* plateDetector = createDetector(&config);
+    PreWarp prewarp(&config);
+    Detector* plateDetector = createDetector(&config, &prewarp);
 
     for (int i = 0; i< files.size(); i++)
     {
@@ -166,7 +167,8 @@ int main( int argc, const char** argv )
     alpr.config->setDebug(false);
     alpr.setDetectRegion(true);
 
-    Detector* plateDetector = createDetector(&config);
+    PreWarp prewarp(&config);
+    Detector* plateDetector = createDetector(&config, &prewarp);
     OCR ocr(&config);
 
     vector<double> endToEndTimes;
diff --git a/src/misc_utilities/benchmarks/endtoendtest.h b/src/misc_utilities/benchmarks/endtoendtest.h
index 284df20..4f7d936 100644
--- a/src/misc_utilities/benchmarks/endtoendtest.h
+++ b/src/misc_utilities/benchmarks/endtoendtest.h
@@ -4,6 +4,8 @@
 
 #include "opencv2/highgui/highgui.hpp"
 #include "opencv2/imgproc/imgproc.hpp"
+#include "detection/detector_types.h"
+#include "prewarp.h"
 #include "alpr_impl.h"
 #include "benchmark_utils.h"
 
diff --git a/src/openalpr/detection/detector_types.h b/src/openalpr/detection/detector_types.h
index a278d0a..0873959 100644
--- a/src/openalpr/detection/detector_types.h
+++ b/src/openalpr/detection/detector_types.h
@@ -20,12 +20,15 @@
 #ifndef OPENALPR_DETECTOR_TYPES_H
 #define	OPENALPR_DETECTOR_TYPES_H
 
-
+namespace alpr
+{
+  
   struct PlateRegion
   {
     cv::Rect rect;
     std::vector<PlateRegion> children;
   };
-
+  
+}
 #endif	/* OPENALPR_DETECTOR_TYPES_H */