diff --git a/StRoot/StGenericVertexMaker/StiPPVertex/BtofHitList.cxx b/StRoot/StGenericVertexMaker/StiPPVertex/BtofHitList.cxx
index 1dec5065f78..30f3fe42560 100644
--- a/StRoot/StGenericVertexMaker/StiPPVertex/BtofHitList.cxx
+++ b/StRoot/StGenericVertexMaker/StiPPVertex/BtofHitList.cxx
@@ -19,7 +19,7 @@
 
 //==========================================================
 //==========================================================
-BtofHitList::BtofHitList() :
+BtofHitList::BtofHitList() : geometry(0), 
   // phi, 60 bins
   // eta, 32*2 bins not with the same width, so eta0,deta are really not used
   ScintHitList(0.,M_PI/60,60, -0.9,0.028125,64,"Btof",4,0.75)