diff --git a/lld/ELF/InputFiles.cpp b/lld/ELF/InputFiles.cpp
index b95aefe467d7..8e6267203765 100644
--- a/lld/ELF/InputFiles.cpp
+++ b/lld/ELF/InputFiles.cpp
@@ -144,7 +144,7 @@ template <class ELFT>
 uint32_t ELFFileBase<ELFT>::getSectionIndex(const Elf_Sym &Sym) const {
   uint32_t I = Sym.st_shndx;
   if (I == ELF::SHN_XINDEX)
-    return ELFObj.getExtendedSymbolTableIndex(&Sym, Symtab, SymtabSHNDX);
+    return check(ELFObj.getExtendedSymbolTableIndex(&Sym, Symtab, SymtabSHNDX));
   if (I >= ELF::SHN_LORESERVE)
     return 0;
   return I;