diff --git a/include/Hcal/HcalVetoProcessor.h b/include/Hcal/HcalVetoProcessor.h
index 7762a43..0b282e7 100644
--- a/include/Hcal/HcalVetoProcessor.h
+++ b/include/Hcal/HcalVetoProcessor.h
@@ -52,11 +52,10 @@ class HcalVetoProcessor : public framework::Producer {
   /** Maximum hit time that should be considered by the veto. */
   float maxTime_{50};  // ns
 
-  /** Maximum z depth that a hit can have. */
-  float maxDepth_{4000};  // mm
+  /** The minimum number of PE in both bars needed for a hit to be considered in
+   * double ended readout mode. */
+  float backMinPE_{1};
 
-  /** The minimum number of PE needed for a hit. */
-  float minPE_{1};
 
 };  // HcalVetoProcessor
 }  // namespace hcal
diff --git a/src/Hcal/HcalVetoProcessor.cxx b/src/Hcal/HcalVetoProcessor.cxx
index 3bcd11a..fb54de6 100644
--- a/src/Hcal/HcalVetoProcessor.cxx
+++ b/src/Hcal/HcalVetoProcessor.cxx
@@ -22,7 +22,22 @@ HcalVetoProcessor::~HcalVetoProcessor() {}
 void HcalVetoProcessor::configure(framework::config::Parameters &parameters) {
   totalPEThreshold_ = parameters.getParameter<double>("pe_threshold");
   maxTime_ = parameters.getParameter<double>("max_time");
-  minPE_ = parameters.getParameter<double>("back_min_pe");
+  outputCollName_ = parameters.getParameter<std::string>("output_coll_name");
+  inputHitCollName_ =
+      parameters.getParameter<std::string>("input_hit_coll_name");
+  inputHitPassName_ =
+      parameters.getParameter<std::string>("input_hit_pass_name");
+
+  double maxDepth_ = parameters.getParameter<double>("max_depth", 0.);
+  if (maxDepth_ != 0.) {
+    EXCEPTION_RAISE(
+        "InvalidParam",
+        "Earlier versions of the Hcal veto defined a max depth for "
+        "positions which is no longer implemented. Remove the "
+        "parameter (max_depth) from your configuration. See "
+        "https://github.com/LDMX-Software/Hcal/issues/61 for details");
+  }
+  backMinPE_ = parameters.getParameter<double>("back_min_pe");
 }
 
 void HcalVetoProcessor::produce(framework::Event &event) {