diff --git a/metadata/de.steinpfeffer.rdt.txt b/metadata/de.steinpfeffer.rdt.txt
index 1d5071b74c..fe55478946 100644
--- a/metadata/de.steinpfeffer.rdt.txt
+++ b/metadata/de.steinpfeffer.rdt.txt
@@ -1,4 +1,5 @@
-Categories:Office,Mathematics
+Categories:Office,Science & Education
+#Categories:Mathematics
 License:Apache2
 Web Site:https://github.com/jufickel/rdt
 Source Code:https://github.com/jufickel/rdt