diff --git a/lld/ELF/InputSection.cpp b/lld/ELF/InputSection.cpp
index 943cf18e6cf05..570d5f561c159 100644
--- a/lld/ELF/InputSection.cpp
+++ b/lld/ELF/InputSection.cpp
@@ -1402,7 +1402,7 @@ void MergeInputSection::splitNonStrings(ArrayRef<uint8_t> data,
   assert((size % entSize) == 0);
   const bool live = !(flags & SHF_ALLOC) || !config->gcSections;
 
-  pieces.assign(size / entSize, SectionPiece(0, 0, false));
+  pieces.resize_for_overwrite(size / entSize);
   for (size_t i = 0, j = 0; i != size; i += entSize, j++)
     pieces[j] = {i, (uint32_t)xxHash64(data.slice(i, entSize)), live};
 }
diff --git a/lld/ELF/InputSection.h b/lld/ELF/InputSection.h
index 0b80125141390..adfc45ece9bcd 100644
--- a/lld/ELF/InputSection.h
+++ b/lld/ELF/InputSection.h
@@ -242,6 +242,7 @@ class InputSectionBase : public SectionBase {
 // have to be as compact as possible, which is why we don't store the size (can
 // be found by looking at the next one).
 struct SectionPiece {
+  SectionPiece() = default;
   SectionPiece(size_t off, uint32_t hash, bool live)
       : inputOff(off), live(live), hash(hash >> 1) {}