diff --git a/Trajectories/Trajectories-v2.1.0.ckan b/Trajectories/Trajectories-v2.1.0.ckan
index 0764a7f373..d95dd6d96f 100644
--- a/Trajectories/Trajectories-v2.1.0.ckan
+++ b/Trajectories/Trajectories-v2.1.0.ckan
@@ -8,7 +8,7 @@
         "Kobymaru",
         "PiezPiedPy"
     ],
-    "license": "MIT",
+    "license": "GPL-3.0",
     "resources": {
         "homepage": "http://forum.kerbalspaceprogram.com/index.php?/topic/94368-105-trajectories-v145-2015-12-05-atmospheric-predictions/",
         "spacedock": "https://spacedock.info/mod/396/Trajectories",