diff --git a/Frechet_distance/test/Frechet_distance/Frechet_distance_test.cpp b/Frechet_distance/test/Frechet_distance/Frechet_distance_test.cpp
index c88faa02acbe..c08972c694ad 100644
--- a/Frechet_distance/test/Frechet_distance/Frechet_distance_test.cpp
+++ b/Frechet_distance/test/Frechet_distance/Frechet_distance_test.cpp
@@ -71,6 +71,9 @@ static TestCurves readCurves(std::string const& curve_directory)
 
     // read filenames of curve files
     std::ifstream file(curve_directory + "dataset.txt");
+
+  std::cout << "Trying to read " << curve_directory  << "dataset.txt\n";
+
     assert(file);
 
     std::string line;
@@ -82,6 +85,7 @@ static TestCurves readCurves(std::string const& curve_directory)
     curves.reserve(curve_filenames.size());
     for (auto const& curve_filename : curve_filenames) {
         std::ifstream curve_file(curve_directory + curve_filename);
+        std::cout << "   " << curve_directory + curve_filename  << "\n";
         assert(curve_file);
 
         curves.emplace_back();
diff --git a/Number_types/include/CGAL/Sqrt_extension/Sqrt_extension_type.h b/Number_types/include/CGAL/Sqrt_extension/Sqrt_extension_type.h
index 98318babf486..dca6500344ca 100644
--- a/Number_types/include/CGAL/Sqrt_extension/Sqrt_extension_type.h
+++ b/Number_types/include/CGAL/Sqrt_extension/Sqrt_extension_type.h
@@ -146,6 +146,20 @@ class Sqrt_extension : public internal::Interval_optional_caching<FP_TAG>,
       return *this;
     }
 
+    Sqrt_extension&
+    operator=(const NT& i)
+    {
+      *this = Sqrt_extension(i);
+      return *this;
+    }
+
+    Sqrt_extension&
+    operator=(CGAL_int(NT) i)
+    {
+      *this = Sqrt_extension(i);
+      return *this;
+    }
+
     //non-documented: used for Make_sqrt
     Sqrt_extension(const ROOT& root,bool)
           :a0_(NT(0)), a1_(NT(1)), root_(root), is_extended_(true) {}