diff --git a/mold.h b/mold.h
index b3d4b7e6..8a785b29 100644
--- a/mold.h
+++ b/mold.h
@@ -1166,7 +1166,6 @@ template <typename E> void resolve_obj_symbols(Context<E> &);
 template <typename E> void resolve_dso_symbols(Context<E> &);
 template <typename E> void eliminate_comdats(Context<E> &);
 template <typename E> void convert_common_symbols(Context<E> &);
-template <typename E> void add_comment_string(Context<E> &, std::string str);
 template <typename E> void compute_merged_section_sizes(Context<E> &);
 template <typename E> void bin_sections(Context<E> &);
 template <typename E> void check_duplicate_symbols(Context<E> &);
diff --git a/passes.cc b/passes.cc
index 2282109f..2338757a 100644
--- a/passes.cc
+++ b/passes.cc
@@ -789,7 +789,6 @@ void fix_synthetic_symbols(Context<E> &ctx) {
   template void resolve_dso_symbols(Context<E> &ctx);                   \
   template void eliminate_comdats(Context<E> &ctx);                     \
   template void convert_common_symbols(Context<E> &ctx);                \
-  template void add_comment_string(Context<E> &ctx, std::string str);   \
   template void compute_merged_section_sizes(Context<E> &ctx);          \
   template void bin_sections(Context<E> &ctx);                          \
   template void check_duplicate_symbols(Context<E> &ctx);               \