diff --git a/src/B0Tracker_geo.cpp b/src/B0Tracker_geo.cpp
index 684679762997ee68ea149819d18289a752cf6a72..394408acd4a488b950d89011570f207429154d22 100644
--- a/src/B0Tracker_geo.cpp
+++ b/src/B0Tracker_geo.cpp
@@ -97,7 +97,6 @@ static Ref_t create_B0Tracker(Detector& description, xml_h e, SensitiveDetector
     }
 
     double thickness_so_far = 0.0;
-    double thickness_sum = -total_thickness/2.0;
     for (ci.reset(), n_sensor = 1, c_id = 0, posY = -y1; ci; ++ci, ++c_id) {
       xml_comp_t c           = ci;
       double     c_thick     = c.thickness();
@@ -147,7 +146,6 @@ static Ref_t create_B0Tracker(Detector& description, xml_h e, SensitiveDetector
         volplane_surfaces[m_nam].push_back(surf);
       }
       posY += c_thick;
-      thickness_sum += c_thick;
       thickness_so_far += c_thick;
     }
     modules[m_nam] = m_volume;
diff --git a/src/OffMomentumTracker_geo.cpp b/src/OffMomentumTracker_geo.cpp
index 2888623a0472b4d3f8d522a2f21a9a6064f9b5e1..9ff73619b7d4d2a48a383de0182d4c0b91e10c62 100644
--- a/src/OffMomentumTracker_geo.cpp
+++ b/src/OffMomentumTracker_geo.cpp
@@ -102,7 +102,7 @@ static Ref_t create_OffMomentumTracker(Detector& description, xml_h e, Sensitive
     Volume m_volume(m_nam, m_solid, vacuum);
     m_volume.setVisAttributes(description.visAttributes(x_mod.visStr()));
 
-    Solid  frame_s;
+    //Solid  frame_s;
     if(x_mod.hasChild("frame")){
       // todo
       // build frame from trd (assumed to be smaller)