diff --git a/resources/linux/atom.desktop.in b/resources/linux/atom.desktop.in
index f028eba23..0677341dc 100644
--- a/resources/linux/atom.desktop.in
+++ b/resources/linux/atom.desktop.in
@@ -6,6 +6,6 @@ Exec=env ATOM_DISABLE_SHELLING_OUT_FOR_ENVIRONMENT=false <%= installDir %>/bin/<
 Icon=<%= iconPath %>
 Type=Application
 StartupNotify=true
-Categories=GNOME;GTK;Utility;TextEditor;Development;
-MimeType=text/plain;
+Categories=GTK;Utility;TextEditor;Development;
+MimeType=application/javascript;application/json;application/x-httpd-eruby;application/x-httpd-php;application/x-httpd-php3;application/x-httpd-php4;application/x-httpd-php5;application/x-ruby;application/x-bash;application/x-csh;application/x-sh;application/x-zsh;application/x-shellscript;application/x-sql;application/x-tcl;application/xhtml+xml;application/xml;application/xml-dtd;application/xslt+xml;text/coffeescript;text/css;text/html;text/plain;text/xml;text/xml-dtd;text/x-bash;text/x-c++;text/x-c++hdr;text/x-c++src;text/x-c;text/x-chdr;text/x-csh;text/x-csrc;text/x-dsrc;text/x-diff;text/x-go;text/x-java;text/x-java-source;text/x-makefile;text/x-markdown;text/x-objc;text/x-perl;text/x-php;text/x-python;text/x-ruby;text/x-sh;text/x-zsh;text/yaml;inode/directory
 StartupWMClass=atom