diff --git a/sample/test_fft_calls.cpp b/sample/test_fft_calls.cpp
index b98fcea..e49ad82 100644
--- a/sample/test_fft_calls.cpp
+++ b/sample/test_fft_calls.cpp
@@ -89,5 +89,6 @@ int main(int argc, char **argv)
   test_2d<float>(128,128);
   test_2d<float>(128,131);  
   test_2d<float>(128,130);  
+  test_2d<float>(131,128);  
   return 0;
 }
diff --git a/src/fourier/details/euclidian_maps.hpp b/src/fourier/details/euclidian_maps.hpp
index 53b0278..5b9b95d 100644
--- a/src/fourier/details/euclidian_maps.hpp
+++ b/src/fourier/details/euclidian_maps.hpp
@@ -172,7 +172,7 @@ namespace CosmoTool
     }
 
     template<typename Array2>
-    void get_Kvec(long p, Array2& kvec) const
+    void get_Kvec_p(long p, Array2& kvec) const
     {
       const DimArray& dims = this->getDims();
       DimArray d(delta_k.size());
@@ -212,7 +212,7 @@ namespace CosmoTool
       return std::sqrt(k2);
     }
 
-    double get_K(long p) const
+    double get_K_p(long p) const
     {
       const DimArray& dims = this->getDims();
       DimArray d(delta_k.size());