diff --git a/linux/org.eu.encom.spectral.appdata.xml b/linux/org.eu.encom.spectral.appdata.xml
index 33faeef82..e39470a1c 100644
--- a/linux/org.eu.encom.spectral.appdata.xml
+++ b/linux/org.eu.encom.spectral.appdata.xml
@@ -24,7 +24,7 @@
   </categories>
 
   <developer_name>Black Hat</developer_name>
-  <metadata_license>GFDL</metadata_license>
+  <metadata_license>CC0-1.0</metadata_license>
   <project_license>GPL-3.0</project_license>
 
   <screenshots>