diff --git a/DDSegmentation/src/NoSegmentation.cpp b/DDSegmentation/src/NoSegmentation.cpp
index ee90c0fbd6eb742380c015f7f281c0ab27129912..9ac782df4f1ad0f6e70b20f91c1659a330533432 100644
--- a/DDSegmentation/src/NoSegmentation.cpp
+++ b/DDSegmentation/src/NoSegmentation.cpp
@@ -26,7 +26,7 @@ namespace DD4hep {
     NoSegmentation::~NoSegmentation()
     { }
 
-    Vector3D NoSegmentation::position(const CellID& cID) const
+    Vector3D NoSegmentation::position(const CellID& /*cID*/) const
     {
       Vector3D cellPosition{0,0,0};
       return cellPosition;