diff --git a/clang/lib/Analysis/LiveVariables.cpp b/clang/lib/Analysis/LiveVariables.cpp
index d03d2a0..b8ea1e9 100644
--- a/clang/lib/Analysis/LiveVariables.cpp
+++ b/clang/lib/Analysis/LiveVariables.cpp
@@ -383,8 +383,7 @@
   bool InAssignment = LV.inAssignment[DR];
   if (const auto *BD = dyn_cast<BindingDecl>(D)) {
     if (!InAssignment)
-      val.liveBindings =
-          LV.BSetFact.add(val.liveBindings, cast<BindingDecl>(D));
+      val.liveBindings = LV.BSetFact.add(val.liveBindings, BD);
   } else if (const auto *VD = dyn_cast<VarDecl>(D)) {
     if (!InAssignment && !isAlwaysAlive(VD))
       val.liveDecls = LV.DSetFact.add(val.liveDecls, VD);