Index: tools/llvm-objdump/llvm-objdump.cpp
===================================================================
--- tools/llvm-objdump/llvm-objdump.cpp
+++ tools/llvm-objdump/llvm-objdump.cpp
@@ -1243,7 +1243,7 @@
     addDynamicElfSymbols(Elf64LEObj, AllSymbols);
   else if (auto *Elf32BEObj = dyn_cast<ELF32BEObjectFile>(Obj))
     addDynamicElfSymbols(Elf32BEObj, AllSymbols);
-  else if (auto *Elf64BEObj = cast<ELF64BEObjectFile>(Obj))
+  else if (auto *Elf64BEObj = dyn_cast<ELF64BEObjectFile>(Obj))
     addDynamicElfSymbols(Elf64BEObj, AllSymbols);
   else
     llvm_unreachable("Unsupported binary format");