diff --git a/images/README.md b/images/README.md
index fde332a..4a6097b 100644
--- a/images/README.md
+++ b/images/README.md
@@ -5,3 +5,5 @@ Currently only some pictures of the first hardware versions are available. This
 If assembled round about 26 boards, which where successfully used by the students at the DHBW Mosbach for getting the first impressions about hardware hacking.
 
 It's planed to make a nice version of the hacking hardware - someone in the future ;-)
+
+The pictures are licensed under the Creative-Commons-Lizenz Attribution-ShareAlike 3.0 Unported (CC-by-sa-3.0) - https://creativecommons.org/licenses/by-sa/3.0/legalcode
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