diff --git a/mold.h b/mold.h
index aef133ef..23b430c6 100644
--- a/mold.h
+++ b/mold.h
@@ -51,7 +51,6 @@ using llvm::ArrayRef;
 using llvm::ErrorOr;
 using llvm::Error;
 using llvm::Expected;
-using llvm::SmallVector;
 using llvm::Twine;
 using llvm::object::ELF64LE;
 using llvm::object::ELFFile;