diff --git a/src/gepetto/corbaserver/tools.py b/src/gepetto/corbaserver/tools.py
index 826110c48ac1e29593bf8da6a1e5b660d3ece7d8..4d7868f7c0d0cf0bbc79025d155ec60b21f82de5 100644
--- a/src/gepetto/corbaserver/tools.py
+++ b/src/gepetto/corbaserver/tools.py
@@ -118,8 +118,8 @@ class Vector6:
     ## \param groupName name of an **existing** group
     def __init__ (self, groupName, angFactor = pi, linFactor = 1.):
         self.name = groupName
-        self.linear  = Linear  (self.name + '/' + VelGetter.suffixLin)
-        self.angular = Angular (self.name + '/' + VelGetter.suffixAng)
+        self.linear  = Linear  (self.name + '/' + Vector6.suffixLin)
+        self.angular = Angular (self.name + '/' + Vector6.suffixAng)
         self.angF = angFactor
         self.linF = linFactor