diff --git a/eo/src/eoInt.h b/eo/src/eoInt.h
index 8dc318e2c..3975743e8 100644
--- a/eo/src/eoInt.h
+++ b/eo/src/eoInt.h
@@ -45,8 +45,15 @@ template <class FitT> class eoInt: public eoVector<FitT, int>
    * @param size Size of the std::vector
    * @param value fill the vector with this value
    */
-  eoInt(unsigned size = 0, int value = 0):
-    eoVector<FitT, int>(size, value) {}
+  eoInt(unsigned size = 0, int value = 0) :
+    eoVector<FitT, int>(size, value)
+  {}
+
+  /** Constructor copying from a vector (or an initialization list).
+   */
+  eoInt(std::vector<int> vec) :
+    eoVector<FitT, int>(vec)
+  {}
 
   /// My class name.
   virtual std::string className() const
diff --git a/eo/src/eoVector.h b/eo/src/eoVector.h
index bdedd5e94..7bf28eaf4 100644
--- a/eo/src/eoVector.h
+++ b/eo/src/eoVector.h
@@ -73,6 +73,12 @@ public:
         : EO<FitT>(), std::vector<GeneType>(_size, _value)
         {}
 
+    /** Constructor copying from a vector (or an initialization list).
+     */
+    eoVector( std::vector<GeneType> vec )
+        : EO<FitT>(), std::vector<GeneType>(vec)
+        {}
+
     /// copy ctor abstracting from the FitT
     template <class OtherFitnessType>
     eoVector(const eoVector<OtherFitnessType, GeneType>& _vec) : std::vector<GeneType>(_vec)