diff --git a/examples/SimpleDetector/src/AirTube_geo.cpp b/examples/SimpleDetector/src/AirTube_geo.cpp
index 980f9053305495d7d186538eb88d307db49cd610..39a39f84c8ce1d8ee95a4075660924ed33e235a3 100644
--- a/examples/SimpleDetector/src/AirTube_geo.cpp
+++ b/examples/SimpleDetector/src/AirTube_geo.cpp
@@ -19,7 +19,7 @@ using namespace DD4hep::Geometry;
 using namespace DD4hep::DDRec ;
 using namespace DDSurfaces ;
 
-static Ref_t create_element(LCDD& lcdd, xml_h e, SensitiveDetector sens)  {
+static Ref_t create_element(LCDD& lcdd, xml_h e, SensitiveDetector /* sens */)  {
   
   xml_det_t    x_det = e;
   std::string  name  = x_det.nameStr();
@@ -63,4 +63,4 @@ static Ref_t create_element(LCDD& lcdd, xml_h e, SensitiveDetector sens)  {
   return airTube;
 }
 
-DECLARE_DETELEMENT( AirTube,create_element);
+DECLARE_DETELEMENT( AirTube,create_element)
diff --git a/examples/SimpleDetector/src/ZPlanarTracker_geo.cpp b/examples/SimpleDetector/src/ZPlanarTracker_geo.cpp
index d7e9164ada0e2c82994e0201627ce3ccf7a3496b..ceb6ca19f36e1d106386c8859c0b5b525d95389f 100644
--- a/examples/SimpleDetector/src/ZPlanarTracker_geo.cpp
+++ b/examples/SimpleDetector/src/ZPlanarTracker_geo.cpp
@@ -258,4 +258,4 @@ static Ref_t create_element(LCDD& lcdd, xml_h e, SensitiveDetector sens)  {
   return tracker;
 }
 
-DECLARE_DETELEMENT(ZPlanarTracker,create_element);
+DECLARE_DETELEMENT(ZPlanarTracker,create_element)