Index: COFF/Driver.cpp
===================================================================
--- COFF/Driver.cpp
+++ COFF/Driver.cpp
@@ -187,6 +187,7 @@
 
       for (MemoryBufferRef m : getArchiveMembers(file.get()))
         addArchiveBuffer(m, "<whole-archive>", filename, 0);
+      make<std::unique_ptr<Archive>>(std::move(file)); // take ownership
       return;
     }
     symtab->addFile(make<ArchiveFile>(mbref));
Index: test/COFF/thin-archive.s
===================================================================
--- test/COFF/thin-archive.s
+++ test/COFF/thin-archive.s
@@ -11,6 +11,8 @@
 # RUN:     FileCheck --allow-empty %s
 # RUN: lld-link /entry:main %t.main.obj %t_thin.lib /out:%t.exe 2>&1 | \
 # RUN:     FileCheck --allow-empty %s
+# RUN: lld-link /entry:main %t.main.obj /wholearchive:%t_thin.lib /out:%t.exe 2>&1 | \
+# RUN:     FileCheck --allow-empty %s
 
 # RUN: rm %t.lib.obj
 # RUN: lld-link /entry:main %t.main.obj %t.lib /out:%t.exe 2>&1 | \