diff --git a/llvm/include/llvm/ObjectYAML/ELFYAML.h b/llvm/include/llvm/ObjectYAML/ELFYAML.h
index e883f2f3e144..1089feab39ea 100644
--- a/llvm/include/llvm/ObjectYAML/ELFYAML.h
+++ b/llvm/include/llvm/ObjectYAML/ELFYAML.h
@@ -275,7 +275,7 @@ struct Section : public Chunk {
   std::optional<llvm::yaml::Hex64> Size;
 
   // Holds the original section index.
-  unsigned OriginalSecNdx;
+  unsigned OriginalSecNdx = 0;
 
   Section(ChunkKind Kind, bool IsImplicit = false) : Chunk(Kind, IsImplicit) {}