1 files changed, 17 insertions, 0 deletions

diff --git a/src/bin/eolian_mono/eolian/mono/generation_contexts.hh b/src/bin/eolian_mono/eolian/mono/generation_contexts.hh
index 985e373..f7376f0 100644
--- a/src/bin/eolian_mono/eolian/mono/generation_contexts.hh
+++ b/src/bin/eolian_mono/eolian/mono/generation_contexts.hh
@@ -1,6 +1,23 @@
+/*
+ * Copyright 2019 by its authors. See AUTHORS.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 #ifndef EOLIAN_MONO_GENERATION_CONTEXTS_HH
 #define EOLIAN_MONO_GENERATION_CONTEXTS_HH
 
+#include <map>
+
 #include "grammar/context.hpp"
 #include "grammar/indentation.hpp"