diff --git a/DataFormats/HGCalDigi/interface/PHGCSimAccumulator.h b/DataFormats/HGCalDigi/interface/PHGCSimAccumulator.h
index 3d93d35793674..1addf33a8a90c 100644
--- a/DataFormats/HGCalDigi/interface/PHGCSimAccumulator.h
+++ b/DataFormats/HGCalDigi/interface/PHGCSimAccumulator.h
@@ -50,7 +50,6 @@ class PHGCSimAccumulator {
         timeArray_.emplace_back(data);
       }
     }
-    SimHitCollection(const SimHitCollection& simhitcollection) = default;
     unsigned int nhits() const { return nhits_; }
     unsigned int sampleIndex() const { return (chargeArray_[0] >> sampleOffset) & sampleMask; }
     const std::vector<unsigned short>& chargeArray() const { return chargeArray_; }