diff --git a/data/CREDITS b/data/CREDITS
index 82f0326cd..63e341a09 100644
--- a/data/CREDITS
+++ b/data/CREDITS
@@ -51,12 +51,11 @@ Canarix, Andy (Needer)
 - startrack improvements
 
 Marianne Gagnon (Auria)
-- 'SnowTux peak' track
+- 'SnowTux peak' track (Based on previous track 'Geeko peak' from original TuxKart)
 - 'Shifting sands', 'Around the Lighthouse' and 'On the beach' track improvements
-- Wilber kart
 - 'Amazonian Journey' track
-- 'Fort Magma' track
-- 'Crescent Crossing' track
+- 'Fort Magma' track (based on previous track 'BSOD castle' from original TuxKart)
+- 'Crescent Crossing' track (Based on previous track 'little volcano' from GOTM contributors)
 - New icon
 
 Frederico de Oliveira Linhares