diff --git a/input_sections.cc b/input_sections.cc
index cdad8783..27766b5a 100644
--- a/input_sections.cc
+++ b/input_sections.cc
@@ -126,6 +126,11 @@ void InputSection::scan_relocations() {
     if (!sym->file || !sym->file->is_alive)
       continue;
 
+    if (sym->file->is_dso && set_flag(sym, Symbol::NEEDS_DYNSYM)) {
+      sym->file->dynsym_size += sizeof(ELF64LE::Sym);
+      sym->file->dynstr_size += sym->name.size() + 1;
+    }
+
     switch (rel.getType(false)) {
     case R_X86_64_GOT32:
     case R_X86_64_GOT64:
diff --git a/mold.h b/mold.h
index bba731ba..e6cfdb32 100644
--- a/mold.h
+++ b/mold.h
@@ -209,7 +209,7 @@ public:
   u8 is_undef_weak : 1;
   u8 traced : 1;
 
-  enum { NEEDS_GOT = 1, NEEDS_GOTTP = 2, NEEDS_PLT = 4 };
+  enum { NEEDS_GOT = 1, NEEDS_GOTTP = 2, NEEDS_PLT = 4, NEEDS_DYNSYM = 8 };
   std::atomic_uint8_t flags = ATOMIC_VAR_INIT(0);
 
   u8 visibility = 0;