diff --git a/search/CheckMaxSkews.cc b/search/CheckMaxSkews.cc
index 74cfceb2..3935e752 100644
--- a/search/CheckMaxSkews.cc
+++ b/search/CheckMaxSkews.cc
@@ -81,7 +81,7 @@ void
 MaxSkewChecksVisitor::visit(MaxSkewCheck &check,
 			    const StaState *)
 {
-  checks_.push_back(check.copy());
+  checks_.push_back(new MaxSkewCheck(check));
 }
 
 class MaxSkewViolatorsVisititor : public MaxSkewCheckVisitor
@@ -108,7 +108,7 @@ MaxSkewViolatorsVisititor::visit(MaxSkewCheck &check,
 				 const StaState *sta)
 {
   if (fuzzyLess(check.slack(sta), 0.0))
-    checks_.push_back(check.copy());
+    checks_.push_back(new MaxSkewCheck(check));
 }
 
 MaxSkewCheckSeq &
@@ -146,11 +146,10 @@ MaxSkewSlackVisitor::visit(MaxSkewCheck &check,
 			   const StaState *sta)
 {
   MaxSkewSlackLess slack_less(sta);
-  if (min_slack_check_ == nullptr)
-    min_slack_check_ = check.copy();
-  else if (slack_less(&check, min_slack_check_)) {
+  if (min_slack_check_ == nullptr
+      || slack_less(&check, min_slack_check_)) {
     delete min_slack_check_;
-    min_slack_check_ = check.copy();
+    min_slack_check_ = new MaxSkewCheck(check);
   }
 }
 
@@ -235,12 +234,6 @@ MaxSkewCheck::MaxSkewCheck(PathVertex *clk_path,
 {
 }
 
-MaxSkewCheck *
-MaxSkewCheck::copy()
-{
-  return new MaxSkewCheck(&clk_path_, &ref_path_, check_arc_, check_edge_);
-}
-
 Pin *
 MaxSkewCheck::clkPin(const StaState *sta) const
 {
diff --git a/search/CheckMaxSkews.hh b/search/CheckMaxSkews.hh
index bacc84f5..4a8ab80b 100644
--- a/search/CheckMaxSkews.hh
+++ b/search/CheckMaxSkews.hh
@@ -58,7 +58,6 @@ public:
 	       PathVertex *ref_path,
 	       TimingArc *check_arc,
 	       Edge *check_edge);
-  MaxSkewCheck *copy();
   PathVertex *clkPath() { return &clk_path_; }
   Pin *clkPin(const StaState *sta) const;
   PathVertex *refPath() { return &ref_path_; }
@@ -69,8 +68,6 @@ public:
   TimingArc *checkArc() const { return check_arc_; }
 
 private:
-  DISALLOW_COPY_AND_ASSIGN(MaxSkewCheck);
-
   PathVertex clk_path_;
   PathVertex ref_path_;
   TimingArc *check_arc_;