diff --git a/CGAL_Core/include/CGAL/CORE/BigFloat.h b/CGAL_Core/include/CGAL/CORE/BigFloat.h
index 4dc7263dfb1..f010ee7696c 100644
--- a/CGAL_Core/include/CGAL/CORE/BigFloat.h
+++ b/CGAL_Core/include/CGAL/CORE/BigFloat.h
@@ -61,6 +61,8 @@ public:
   BigFloat(float i) : RCBigFloat(new BigFloatRep(i)) {}
   /// constructor for <tt>int</tt>
   BigFloat(int i) : RCBigFloat(new BigFloatRep(i)) {}
+  /// constructor for <tt>unsigned int</tt>
+  BigFloat(unsigned int i) : RCBigFloat(new BigFloatRep(i)) {}
   /// constructor for <tt>long</tt>
   BigFloat(long l) : RCBigFloat(new BigFloatRep(l)) {}
   /// constructor for <tt>double</tt>
diff --git a/CGAL_Core/include/CGAL/CORE/BigFloatRep.h b/CGAL_Core/include/CGAL/CORE/BigFloatRep.h
index 000ea42deac..74f0de011ae 100644
--- a/CGAL_Core/include/CGAL/CORE/BigFloatRep.h
+++ b/CGAL_Core/include/CGAL/CORE/BigFloatRep.h
@@ -71,6 +71,7 @@ public:
 public:
   //  constructors
   BigFloatRep(int=0);           //inline
+  BigFloatRep(unsigned int);           //inline
   BigFloatRep(short);           //inline
   BigFloatRep(float);           //inline
   BigFloatRep(long);          //inline
@@ -249,6 +250,9 @@ inline BigFloatRep::BigFloatRep(float n)
 inline BigFloatRep::BigFloatRep(int n)
   : m(n), err(0), exp(0) {}
 
+inline BigFloatRep::BigFloatRep(unsigned int n)
+  : m(n), err(0), exp(0) {}
+
 //  Chee (8/8/04) -- introduced constructor from long
 inline BigFloatRep::BigFloatRep(long n)
   : m(n), err(0), exp(0) {}