diff --git a/Modular_arithmetic/include/CGAL/Modular_arithmetic/Residue_type.h b/Modular_arithmetic/include/CGAL/Modular_arithmetic/Residue_type.h
index dad1a6e5685..b8254b1c56f 100644
--- a/Modular_arithmetic/include/CGAL/Modular_arithmetic/Residue_type.h
+++ b/Modular_arithmetic/include/CGAL/Modular_arithmetic/Residue_type.h
@@ -232,6 +232,11 @@ public:
     Residue (long n) {
         x_= RES_soft_reduce (static_cast< double > (n % get_prime_int()));
     }
+
+    //! constructor of Residue, from long long
+    Residue (long long n) {
+        x_= RES_soft_reduce (static_cast< double > (n % get_prime_int()));
+    }
    
     //! Access operator for x, \c const 
     const double& x() const { return x_; }