diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index 49c3ceb24..82ee2da1e 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -25,3 +25,5 @@ jobs:
       run: bin/check/xmllint.sh
     - name: Run crates update
       run: bin/check/crates.sh 
+    - name: Check ad hoc
+      run: bin/check/ad_hoc.sh
diff --git a/bin/check/ad_hoc.sh b/bin/check/ad_hoc.sh
new file mode 100755
index 000000000..eb5442f19
--- /dev/null
+++ b/bin/check/ad_hoc.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+set -eu
+
+# Check that Rust source files contains Orange Copyright
+find packages -name "*.rs" | while read -r rust_file; do
+    if ! grep -q "Copyright (C) 2022 Orange" "$rust_file"; then
+        echo "Missing copyright in $rust_file"
+	exit 1
+    fi
+done
+
+
diff --git a/packages/hurl/src/report/mod.rs b/packages/hurl/src/report/mod.rs
index 534fb00a5..76e50e3ef 100644
--- a/packages/hurl/src/report/mod.rs
+++ b/packages/hurl/src/report/mod.rs
@@ -1,5 +1,6 @@
 /*
  * Hurl (https://hurl.dev)
+ * Copyright (C) 2022 Orange
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/packages/hurl/src/runner/error.rs b/packages/hurl/src/runner/error.rs
index 6087a31fa..188720a17 100644
--- a/packages/hurl/src/runner/error.rs
+++ b/packages/hurl/src/runner/error.rs
@@ -1,3 +1,20 @@
+/*
+ * Hurl (https://hurl.dev)
+ * Copyright (C) 2022 Orange
+ *
+ * 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.
+ *
+ */
 use crate::http::HttpError;
 use crate::runner;
 use crate::runner::RunnerError;
diff --git a/packages/hurl/src/runner/filter.rs b/packages/hurl/src/runner/filter.rs
index 8cc7b42c6..5748c8af5 100644
--- a/packages/hurl/src/runner/filter.rs
+++ b/packages/hurl/src/runner/filter.rs
@@ -1,3 +1,20 @@
+/*
+ * Hurl (https://hurl.dev)
+ * Copyright (C) 2022 Orange
+ *
+ * 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.
+ *
+ */
 use crate::runner::template::eval_template;
 use crate::runner::{Error, RunnerError, Value};
 use hurl_core::ast::{Filter, FilterValue, RegexValue, SourceInfo};
diff --git a/packages/hurl_core/src/parser/filter.rs b/packages/hurl_core/src/parser/filter.rs
index 05cdd3386..05dfd3a75 100644
--- a/packages/hurl_core/src/parser/filter.rs
+++ b/packages/hurl_core/src/parser/filter.rs
@@ -1,3 +1,20 @@
+/*
+ * Hurl (https://hurl.dev)
+ * Copyright (C) 2022 Orange
+ *
+ * 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.
+ *
+ */
 use crate::ast::{Filter, FilterValue, SourceInfo};
 use crate::parser::combinators::choice;
 use crate::parser::primitives::{one_or_more_spaces, try_literal};