diff --git a/c_src/esqlite3_nif.c b/c_src/esqlite3_nif.c
index 5a5dfd9..1bafdd9 100644
--- a/c_src/esqlite3_nif.c
+++ b/c_src/esqlite3_nif.c
@@ -1,3 +1,19 @@
+/*
+ * Copyright 2011 Maas-Maarten Zeeman
+ *
+ * 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.
+*/
+
 /*
  * sqlite3_nif -- an erlang sqlite nif.
 */
diff --git a/src/esqlite3.erl b/src/esqlite3.erl
index aa2325f..a67325b 100644
--- a/src/esqlite3.erl
+++ b/src/esqlite3.erl
@@ -1,6 +1,21 @@
+%% @author Maas-Maarten Zeeman <mmzeeman@xs4all.nl>
+%% @copyright 2011 Maas-Maarten Zeeman
+
+%% @doc Erlang API for sqlite3 databases
+
+%% Copyright 2011 Maas-Maarten Zeeman
 %%
-%%
-%%
+%% 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.
 
 -module(esqlite3).
 -author("Maas-Maarten Zeeman <mmzeeman@xs4all.nl>").
diff --git a/src/esqlite3_nif.erl b/src/esqlite3_nif.erl
index ec33a55..d033066 100644
--- a/src/esqlite3_nif.erl
+++ b/src/esqlite3_nif.erl
@@ -1,6 +1,21 @@
+%% @author Maas-Maarten Zeeman <mmzeeman@xs4all.nl>
+%% @copyright 2011 Maas-Maarten Zeeman
+
+%% @doc Low level erlang API for sqlite3 databases
+
+%% Copyright 2011 Maas-Maarten Zeeman
 %%
-%%
-%%
+%% 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.
 
 -module(esqlite3_nif).
 -author("Maas-Maarten Zeeman <mmzeeman@xs4all.nl>").