diff --git a/gcc/cp/decl2.c b/gcc/cp/decl2.c
index 01a16d38a928..35707a041a1b 100644
--- a/gcc/cp/decl2.c
+++ b/gcc/cp/decl2.c
@@ -2660,6 +2660,7 @@ import_export_decl (tree decl)
 		  comdat_p = (targetm.cxx.class_data_always_comdat ()
 			      || (CLASSTYPE_KEY_METHOD (type)
 				  && DECL_DECLARED_INLINE_P (CLASSTYPE_KEY_METHOD (type))));
+		  mark_needed (decl);
 		  if (!flag_weak)
 		    {
 		      comdat_p = false;