diff --git a/platform/appimage/koreader.desktop b/platform/appimage/koreader.desktop
index 1c6e84db5..c16fc6882 100644
--- a/platform/appimage/koreader.desktop
+++ b/platform/appimage/koreader.desktop
@@ -5,3 +5,4 @@ Exec=reader.lua %u
 Icon=koreader
 Terminal=false
 Type=Application
+Categories=Graphics;
diff --git a/platform/ubuntu-touch/koreader.desktop b/platform/ubuntu-touch/koreader.desktop
index 7cda547bc..2785a3f94 100644
--- a/platform/ubuntu-touch/koreader.desktop
+++ b/platform/ubuntu-touch/koreader.desktop
@@ -8,3 +8,4 @@ Type=Application
 MimeType=application/pdf;application/epub+zip
 X-Ubuntu-Touch=true
 X-Ubuntu-Supported-Orientations=portrait
+Categories=Graphics;