diff --git a/README.rdoc b/README.rdoc
index 994063d..3179968 100644
--- a/README.rdoc
+++ b/README.rdoc
@@ -134,7 +134,9 @@ lib/guard/guard-name.rb inherit from guard/guard and should overwrite at least o
           true
         end
         
-        # Call with Ctrl-C signal (when Guard quit)
+        # Call with Ctrl-C signal (when Guard quit).
+        # This method must return a true value 
+        # if everything went well or guard will not stop.
         def stop
           true
         end
diff --git a/lib/guard/guard.rb b/lib/guard/guard.rb
index 5b55b79..f0c8646 100644
--- a/lib/guard/guard.rb
+++ b/lib/guard/guard.rb
@@ -30,6 +30,7 @@ module Guard
       true
     end
     
+    # Retrieve a true value if the instance successfuly stopped
     def stop
       true
     end