diff --git a/FreeDesktop/sameboy.desktop b/FreeDesktop/sameboy.desktop
index d42f395..20b1b46 100644
--- a/FreeDesktop/sameboy.desktop
+++ b/FreeDesktop/sameboy.desktop
@@ -9,4 +9,4 @@ Keywords=game;boy;gameboy;color;emulator
 Terminal=false
 StartupNotify=false
 Categories=Application;Game;
-MimeType=application/x-gameboy-rom;application/x-gameboy-color-rom
\ No newline at end of file
+MimeType=application/x-gameboy-rom;application/x-gameboy-color-rom;application/x-gameboy-isx
\ No newline at end of file
diff --git a/FreeDesktop/sameboy.xml b/FreeDesktop/sameboy.xml
index 6c0df37..18123ed 100644
--- a/FreeDesktop/sameboy.xml
+++ b/FreeDesktop/sameboy.xml
@@ -14,4 +14,10 @@
   <glob pattern="*.gbc"/>
   <glob pattern="*.cgb"/>
 </mime-type>
+<mime-type type="application/x-gameboy-isx">
+      <comment>Game Boy ISX binary</comment>
+      <icon name="x-gameboy-rom"/>
+      <glob-deleteall/>
+      <glob pattern="*.isx"/>
+    </mime-type>
 </mime-info>