diff --git a/.syncignore-receive b/.syncignore-receive
index c24928f5..717245c3 100644
--- a/.syncignore-receive
+++ b/.syncignore-receive
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: : 2021 The PyPSA-Eur Authors
+#
+# SPDX-License-Identifier: CC0-1.0
+
 .snakemake
 .git
 .pytest_cache
diff --git a/.syncignore-send b/.syncignore-send
index 3839d915..9390d0e5 100644
--- a/.syncignore-send
+++ b/.syncignore-send
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: : 2021 The PyPSA-Eur Authors
+#
+# SPDX-License-Identifier: CC0-1.0
+
 .snakemake
 .git
 .pytest_cache
@@ -11,9 +15,9 @@ __pycache__
 notebooks
 benchmarks
 logs
-resources
+resources*
 results
-networks
+networks*
 cutouts
 data/bundle
-doc
\ No newline at end of file
+doc