diff --git a/examples/ap_fixed/Makefile b/examples/ap_fixed/Makefile
index 5366811..016b7df 100644
--- a/examples/ap_fixed/Makefile
+++ b/examples/ap_fixed/Makefile
@@ -1,3 +1,18 @@
+#
+# Copyright 2019 Xilinx, Inc.
+#
+# 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.
+#
 a.out: test.cpp
 	g++ -I../../include test.cpp
 	./a.out
diff --git a/examples/ap_fixed/test.cpp b/examples/ap_fixed/test.cpp
index 5e62ab8..08dfe9d 100644
--- a/examples/ap_fixed/test.cpp
+++ b/examples/ap_fixed/test.cpp
@@ -1,3 +1,18 @@
+/*
+ * Copyright 2019 Xilinx, Inc.
+ *
+ * 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.
+ */
 #include "ap_fixed.h"
 #include <iostream>
 
diff --git a/examples/ap_int/Makefile b/examples/ap_int/Makefile
index c0c307e..7b343a2 100644
--- a/examples/ap_int/Makefile
+++ b/examples/ap_int/Makefile
@@ -1,3 +1,18 @@
+#
+# Copyright 2019 Xilinx, Inc.
+#
+# 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.
+#
 a.out: test.cpp
 	g++ -I../../include test.cpp -std=c++11
 	./a.out
diff --git a/examples/ap_int/test.cpp b/examples/ap_int/test.cpp
index 38d0eb7..f1a6840 100644
--- a/examples/ap_int/test.cpp
+++ b/examples/ap_int/test.cpp
@@ -1,3 +1,18 @@
+/*
+ * Copyright 2019 Xilinx, Inc.
+ *
+ * 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.
+ */
 #include "ap_int.h"
 #include <iostream>