diff --git a/linux/appdata/org.kde.Falkon.appdata.xml b/linux/appdata/org.kde.Falkon.appdata.xml
index 72904af82..5a37853c5 100644
--- a/linux/appdata/org.kde.Falkon.appdata.xml
+++ b/linux/appdata/org.kde.Falkon.appdata.xml
@@ -13,6 +13,7 @@
   <metadata_license>CC0-1.0</metadata_license>
   <metadata_license xml:lang="ca">CC0-1.0</metadata_license>
   <metadata_license xml:lang="ca-valencia">CC0-1.0</metadata_license>
+  <metadata_license xml:lang="cs">CC0-1.0</metadata_license>
   <metadata_license xml:lang="es">CC0-1.0</metadata_license>
   <metadata_license xml:lang="nl">CC0-1.0</metadata_license>
   <metadata_license xml:lang="pt">CC0-1.0</metadata_license>
@@ -23,6 +24,7 @@
   <project_license>GPL-3.0+</project_license>
   <project_license xml:lang="ca">GPL-3.0+</project_license>
   <project_license xml:lang="ca-valencia">GPL-3.0+</project_license>
+  <project_license xml:lang="cs">GPL-3.0+</project_license>
   <project_license xml:lang="es">GPL-3.0+</project_license>
   <project_license xml:lang="nl">GPL-3.0+</project_license>
   <project_license xml:lang="pt">GPL-3.0+</project_license>
@@ -33,6 +35,7 @@
   <name>Falkon</name>
   <name xml:lang="ca">Falkon</name>
   <name xml:lang="ca-valencia">Falkon</name>
+  <name xml:lang="cs">Falkon</name>
   <name xml:lang="es">Falkon</name>
   <name xml:lang="nl">Falkon</name>
   <name xml:lang="pt">Falkon</name>
@@ -43,6 +46,7 @@
   <summary>Web Browser</summary>
   <summary xml:lang="ca">Navegador web</summary>
   <summary xml:lang="ca-valencia">Navegador web</summary>
+  <summary xml:lang="cs">Webový prohlížeč</summary>
   <summary xml:lang="es">Navegador web</summary>
   <summary xml:lang="nl">Webbrowser</summary>
   <summary xml:lang="pt">Navegador Web</summary>
@@ -90,6 +94,7 @@
     <screenshot type="default" width="864" height="567">https://www.qupzilla.com/screens/gnome.png</screenshot>
     <screenshot type="default" width="864" height="567" xml:lang="ca">https://www.qupzilla.com/screens/gnome.png</screenshot>
     <screenshot type="default" width="864" height="567" xml:lang="ca-valencia">https://www.qupzilla.com/screens/gnome.png</screenshot>
+    <screenshot type="default" width="864" height="567" xml:lang="cs">https://www.qupzilla.com/screens/gnome.png</screenshot>
     <screenshot type="default" width="864" height="567" xml:lang="es">https://www.qupzilla.com/screens/gnome.png</screenshot>
     <screenshot type="default" width="864" height="567" xml:lang="nl">https://www.qupzilla.com/screens/gnome.png</screenshot>
     <screenshot type="default" width="864" height="567" xml:lang="pt">https://www.qupzilla.com/screens/gnome.png</screenshot>
@@ -100,6 +105,7 @@
     <screenshot width="948" height="638">https://www.qupzilla.com/screens/kde_window.png</screenshot>
     <screenshot width="948" height="638" xml:lang="ca">https://www.qupzilla.com/screens/kde_window.png</screenshot>
     <screenshot width="948" height="638" xml:lang="ca-valencia">https://www.qupzilla.com/screens/kde_window.png</screenshot>
+    <screenshot width="948" height="638" xml:lang="cs">https://www.qupzilla.com/screens/kde_window.png</screenshot>
     <screenshot width="948" height="638" xml:lang="es">https://www.qupzilla.com/screens/kde_window.png</screenshot>
     <screenshot width="948" height="638" xml:lang="nl">https://www.qupzilla.com/screens/kde_window.png</screenshot>
     <screenshot width="948" height="638" xml:lang="pt">https://www.qupzilla.com/screens/kde_window.png</screenshot>
@@ -110,6 +116,7 @@
     <screenshot width="864" height="567">https://www.qupzilla.com/screens/dial_gnome.png</screenshot>
     <screenshot width="864" height="567" xml:lang="ca">https://www.qupzilla.com/screens/dial_gnome.png</screenshot>
     <screenshot width="864" height="567" xml:lang="ca-valencia">https://www.qupzilla.com/screens/dial_gnome.png</screenshot>
+    <screenshot width="864" height="567" xml:lang="cs">https://www.qupzilla.com/screens/dial_gnome.png</screenshot>
     <screenshot width="864" height="567" xml:lang="es">https://www.qupzilla.com/screens/dial_gnome.png</screenshot>
     <screenshot width="864" height="567" xml:lang="nl">https://www.qupzilla.com/screens/dial_gnome.png</screenshot>
     <screenshot width="864" height="567" xml:lang="pt">https://www.qupzilla.com/screens/dial_gnome.png</screenshot>
@@ -120,6 +127,7 @@
     <screenshot width="944" height="633">https://www.qupzilla.com/screens/kde_speeddial.png</screenshot>
     <screenshot width="944" height="633" xml:lang="ca">https://www.qupzilla.com/screens/kde_speeddial.png</screenshot>
     <screenshot width="944" height="633" xml:lang="ca-valencia">https://www.qupzilla.com/screens/kde_speeddial.png</screenshot>
+    <screenshot width="944" height="633" xml:lang="cs">https://www.qupzilla.com/screens/kde_speeddial.png</screenshot>
     <screenshot width="944" height="633" xml:lang="es">https://www.qupzilla.com/screens/kde_speeddial.png</screenshot>
     <screenshot width="944" height="633" xml:lang="nl">https://www.qupzilla.com/screens/kde_speeddial.png</screenshot>
     <screenshot width="944" height="633" xml:lang="pt">https://www.qupzilla.com/screens/kde_speeddial.png</screenshot>
@@ -130,6 +138,7 @@
     <screenshot width="809" height="528">https://www.qupzilla.com/screens/preferences_gnome.png</screenshot>
     <screenshot width="809" height="528" xml:lang="ca">https://www.qupzilla.com/screens/preferences_gnome.png</screenshot>
     <screenshot width="809" height="528" xml:lang="ca-valencia">https://www.qupzilla.com/screens/preferences_gnome.png</screenshot>
+    <screenshot width="809" height="528" xml:lang="cs">https://www.qupzilla.com/screens/preferences_gnome.png</screenshot>
     <screenshot width="809" height="528" xml:lang="es">https://www.qupzilla.com/screens/preferences_gnome.png</screenshot>
     <screenshot width="809" height="528" xml:lang="nl">https://www.qupzilla.com/screens/preferences_gnome.png</screenshot>
     <screenshot width="809" height="528" xml:lang="pt">https://www.qupzilla.com/screens/preferences_gnome.png</screenshot>
@@ -140,6 +149,7 @@
     <screenshot width="760" height="518">https://www.qupzilla.com/screens/kde_preferences.png</screenshot>
     <screenshot width="760" height="518" xml:lang="ca">https://www.qupzilla.com/screens/kde_preferences.png</screenshot>
     <screenshot width="760" height="518" xml:lang="ca-valencia">https://www.qupzilla.com/screens/kde_preferences.png</screenshot>
+    <screenshot width="760" height="518" xml:lang="cs">https://www.qupzilla.com/screens/kde_preferences.png</screenshot>
     <screenshot width="760" height="518" xml:lang="es">https://www.qupzilla.com/screens/kde_preferences.png</screenshot>
     <screenshot width="760" height="518" xml:lang="nl">https://www.qupzilla.com/screens/kde_preferences.png</screenshot>
     <screenshot width="760" height="518" xml:lang="pt">https://www.qupzilla.com/screens/kde_preferences.png</screenshot>
@@ -151,6 +161,7 @@
   <url type="homepage">https://www.qupzilla.com/</url>
   <url type="homepage" xml:lang="ca">https://www.qupzilla.com/</url>
   <url type="homepage" xml:lang="ca-valencia">https://www.qupzilla.com/</url>
+  <url type="homepage" xml:lang="cs">https://www.qupzilla.com/</url>
   <url type="homepage" xml:lang="es">https://www.qupzilla.com/</url>
   <url type="homepage" xml:lang="nl">https://www.qupzilla.com/</url>
   <url type="homepage" xml:lang="pt">https://www.qupzilla.com/</url>
@@ -161,6 +172,7 @@
   <updatecontact>nowrep_at_gmail.com</updatecontact>
   <updatecontact xml:lang="ca">nowrep_at_gmail.com</updatecontact>
   <updatecontact xml:lang="ca-valencia">nowrep_at_gmail.com</updatecontact>
+  <updatecontact xml:lang="cs">nowrep_at_gmail.com</updatecontact>
   <updatecontact xml:lang="es">nowrep_at_gmail.com</updatecontact>
   <updatecontact xml:lang="nl">nowrep_at_gmail.com</updatecontact>
   <updatecontact xml:lang="pt">nowrep_at_gmail.com</updatecontact>