diff --git a/kitty/guess_mime_type.py b/kitty/guess_mime_type.py
index e392cacf8..5bd97bd46 100644
--- a/kitty/guess_mime_type.py
+++ b/kitty/guess_mime_type.py
@@ -20,7 +20,7 @@ known_extensions = {
 }
 
 
-text_mimes = ('application/javascript', 'application/x-sh', 'application/json')
+text_mimes = ('application/javascript', 'application/x-sh', 'application/x-shellscript', 'application/json')
 
 
 def is_rc_file(path: str) -> bool:
diff --git a/setup.py b/setup.py
index 54f42e4de..5f494693b 100755
--- a/setup.py
+++ b/setup.py
@@ -985,7 +985,7 @@ Exec=kitty +open %U
 Icon=kitty
 Categories=System;TerminalEmulator;
 NoDisplay=true
-MimeType=image/*;application/x-sh;inode/directory;text/*;x-scheme-handler/kitty;
+MimeType=image/*;application/x-sh;application/x-shellscript;inode/directory;text/*;x-scheme-handler/kitty;
 '''
             )