diff --git a/Isosurfacing_3/package_info/Isosurfacing_3/license.txt b/Isosurfacing_3/package_info/Isosurfacing_3/license.txt
index ba1f6f2dc96..23559ebbbaf 100644
--- a/Isosurfacing_3/package_info/Isosurfacing_3/license.txt
+++ b/Isosurfacing_3/package_info/Isosurfacing_3/license.txt
@@ -1 +1,2 @@
-GPL (v3 or later)
\ No newline at end of file
+GPL (v3 or later)
+GPL (v3 or later) AND MIT/X11 (BSD like)