diff --git a/new/virtual-target.jam b/new/virtual-target.jam
index 5c5d4d51c..9811185de 100644
--- a/new/virtual-target.jam
+++ b/new/virtual-target.jam
@@ -294,20 +294,35 @@ rule abstract-file-target ( name
         }
     }
     
-    # Returns the name of main target this virtual target is specific too.
-    # Ordinary, it's assumed that grist of the actual Jam target and target path
-    # is determined by project, base properties, target name and type.
-    # Derived classes may return non-empty string to indicate that the target is
-    # specific to the given main target.
+    # Returns the name of main target this virtual target is specific
+    # to.  
+    #
+    # Ordinarily, it's assumed that any grist on the actual Jam target
+    # and target path is determined by project, base properties,
+    # target name and type.  Derived classes may return a non-empty
+    # string to indicate that the target is specific to the given main
+    # target.
     rule specific-main-target ( )
     {
         return "" ;
     }
       
+    # Return a human-readable representation of this target
+    #
+    # If this target has an action, that's:
+    #
+    #    { <action-name>-<self.name>.<self.type> <action-sources>... }
+    #
+    # otherwise, it's:
+    #
+    #    { <self.name>.<self.type> }
+    #
     rule str ( )
     {
         local action = [ action ] ;
-        local filename = [ sequence.join $(self.name) "."  $(self.type) ] ;
+        
+        local name-dot-type = [ sequence.join $(self.name) "."  $(self.type) ] ;
+        
         if $(action)
         {
             local sources = [ $(action).sources ] ;
@@ -318,12 +333,13 @@ rule abstract-file-target ( name
                 ss += [ $(s).str ] ;
             }
 
-            local name =  [ $(action).action-name ] ;
-            return "{" $(name)-$(filename) $(ss) "}" ;
+            local action-name =  [ $(action).action-name ] ;
+            
+            return "{" $(action-name)-$(name-dot-type) $(ss) "}" ;
         }
         else
         {
-            return "{" $(filename) "}" ;
+            return "{" $(name-dot-type) "}" ;
         }
     }
 
diff --git a/v2/build/virtual-target.jam b/v2/build/virtual-target.jam
index 5c5d4d51c..9811185de 100644
--- a/v2/build/virtual-target.jam
+++ b/v2/build/virtual-target.jam
@@ -294,20 +294,35 @@ rule abstract-file-target ( name
         }
     }
     
-    # Returns the name of main target this virtual target is specific too.
-    # Ordinary, it's assumed that grist of the actual Jam target and target path
-    # is determined by project, base properties, target name and type.
-    # Derived classes may return non-empty string to indicate that the target is
-    # specific to the given main target.
+    # Returns the name of main target this virtual target is specific
+    # to.  
+    #
+    # Ordinarily, it's assumed that any grist on the actual Jam target
+    # and target path is determined by project, base properties,
+    # target name and type.  Derived classes may return a non-empty
+    # string to indicate that the target is specific to the given main
+    # target.
     rule specific-main-target ( )
     {
         return "" ;
     }
       
+    # Return a human-readable representation of this target
+    #
+    # If this target has an action, that's:
+    #
+    #    { <action-name>-<self.name>.<self.type> <action-sources>... }
+    #
+    # otherwise, it's:
+    #
+    #    { <self.name>.<self.type> }
+    #
     rule str ( )
     {
         local action = [ action ] ;
-        local filename = [ sequence.join $(self.name) "."  $(self.type) ] ;
+        
+        local name-dot-type = [ sequence.join $(self.name) "."  $(self.type) ] ;
+        
         if $(action)
         {
             local sources = [ $(action).sources ] ;
@@ -318,12 +333,13 @@ rule abstract-file-target ( name
                 ss += [ $(s).str ] ;
             }
 
-            local name =  [ $(action).action-name ] ;
-            return "{" $(name)-$(filename) $(ss) "}" ;
+            local action-name =  [ $(action).action-name ] ;
+            
+            return "{" $(action-name)-$(name-dot-type) $(ss) "}" ;
         }
         else
         {
-            return "{" $(filename) "}" ;
+            return "{" $(name-dot-type) "}" ;
         }
     }