diff --git a/src/file_analysis/AnalyzerSet.cc b/src/file_analysis/AnalyzerSet.cc
index 2dc4902314..f7abc01dc2 100644
--- a/src/file_analysis/AnalyzerSet.cc
+++ b/src/file_analysis/AnalyzerSet.cc
@@ -15,7 +15,7 @@ static void analyzer_del_func(void* v)
 AnalyzerSet::AnalyzerSet(File* arg_file) : file(arg_file)
 	{
 	TypeList* t = new TypeList();
-	t->Append(file_mgr->GetTagEnumType());
+	t->Append(file_mgr->GetTagEnumType()->Ref());
 	t->Append(BifType::Record::Files::AnalyzerArgs->Ref());
 	analyzer_hash = new CompositeHash(t);
 	Unref(t);