diff --git a/README.md b/README.md
index 8a357babac5226ab2575b338e96807be6bb8de42..284bb69eacd4ae786065395b9d4009ec83f0383c 100644
--- a/README.md
+++ b/README.md
@@ -145,4 +145,5 @@ Image Sources
 -------------
 
   * USNPS pictograms taken from the Open Icon Library: http://sourceforge.net/projects/openiconlibrary/
+  * Font Awesome pictograms are taken from the Font Awesome project: https://fortawesome.github.io/Font-Awesome/
 
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