changed name from simple_fft_traits to ei_kissfft_impl
diff --git a/bench/benchFFT.cpp b/bench/benchFFT.cpp
index 84cc49f..ffa4fff 100644
--- a/bench/benchFFT.cpp
+++ b/bench/benchFFT.cpp
@@ -26,7 +26,7 @@
 #include <vector>
 #include <Eigen/Core>
 #include <bench/BenchTimer.h>
-#include <unsupported/Eigen/FFT.h>
+#include <unsupported/Eigen/FFT>
 
 using namespace Eigen;
 using namespace std;