diff --git a/src/alire-index.ads b/src/alire-index.ads
index 01292a3b..0731fce0 100644
--- a/src/alire-index.ads
+++ b/src/alire-index.ads
@@ -262,14 +262,16 @@ package Alire.Index is
    ------------
    --  The root determines the starting point to look for dependencies
    
-   function Set (Project      : Projects.Names;
-                 Version      : Semantic_Versioning.Version)
-                 return Roots.Root renames Root.Set;
+   subtype Root is Roots.Root;
+   
+   function Set_Root (Project      : Projects.Names;
+                      Version      : Semantic_Versioning.Version)
+                      return Roots.Root renames Alire.Root.Set;
    --  All information will be taken from the indexed release
 
-   function Set (Project      : Name_String;
-                 Dependencies : Conditional.Dependencies)
-                 return Roots.Root renames Root.Set;
+   function Set_Root (Project      : Name_String;
+                      Dependencies : Conditional.Dependencies)
+                      return Roots.Root renames Alire.Root.Set;
    --  An unindexed working copy
    
 private
diff --git a/src/alire-roots.ads b/src/alire-roots.ads
index 8e177258..7a36df09 100644
--- a/src/alire-roots.ads
+++ b/src/alire-roots.ads
@@ -1,9 +1,8 @@
 with Alire.Conditional;
 with Alire.Containers;
+with Alire.OS_Lib;
 with Alire.Releases;
 
-with Semantic_Versioning;
-
 package Alire.Roots is
 
    --  Type used to encapsulate the information about the root release/working copy
@@ -16,11 +15,11 @@ package Alire.Roots is
                       Dependencies : Conditional.Dependencies := Conditional.For_Dependencies.Empty)
                       return         Root;
 
+   function Default_Executable (R : Root) return String;
    function Dependencies (R : Root) return Conditional.Dependencies;
    function Is_Released  (R : Root) return Boolean;
    function Name         (R : Root) return Name_String;
-   function Release      (R : Root) return Releases.Release            with Pre => R.Is_Released;
-   function Version      (R : Root) return Semantic_Versioning.Version with Pre => R.Is_Released;
+   function Release      (R : Root) return Releases.Release with Pre => R.Is_Released;
 
 private
 
@@ -42,6 +41,11 @@ private
                       return         Root is
       (Name'Length, False, Name, Dependencies);
 
+   function Default_Executable (R : Root) return String is
+     (if R.Released
+      then R.Release.Constant_Reference.Default_Executable
+      else R.Name & OS_Lib.Exe_Suffix);
+
    function Dependencies (R : Root) return Conditional.Dependencies is
      (if R.Released
       then R.Release.Constant_Reference.Depends
@@ -56,9 +60,4 @@ private
 
    function Release      (R : Root) return Releases.Release is (R.Release.Element);
 
-   function Version      (R : Root) return Semantic_Versioning.Version is
-     (if R.Released
-      then R.Release.Constant_Reference.Version
-      else raise Constraint_Error with "Unreleased root");
-
 end Alire.Roots;