diff --git a/app/build/resources/linux/mailspring.desktop.in b/app/build/resources/linux/mailspring.desktop.in
index 2c4130fd5..5fe04d812 100644
--- a/app/build/resources/linux/mailspring.desktop.in
+++ b/app/build/resources/linux/mailspring.desktop.in
@@ -8,4 +8,4 @@ Type=Application
 StartupNotify=true
 StartupWMClass=<%= productName %>
 Categories=GNOME;GTK;Network;Email;Utility;Development;
-MimeType=text/plain;x-scheme-handler/mailto;x-scheme-handler/mailspring;
+MimeType=x-scheme-handler/mailto;x-scheme-handler/mailspring;