diff --git a/kitty/guess_mime_type.py b/kitty/guess_mime_type.py
index 137d6c154..fa3013314 100644
--- a/kitty/guess_mime_type.py
+++ b/kitty/guess_mime_type.py
@@ -21,7 +21,20 @@ known_extensions = {
 }
 
 
-text_mimes = ('application/javascript', 'application/x-sh', 'application/x-shellscript', 'application/json')
+text_mimes = (
+    'application/x-sh',
+    'application/x-csh',
+    'application/x-shellscript',
+    'application/javascript',
+    'application/json',
+    'application/xml',
+    'application/x-yaml',
+    'application/yaml',
+    'application/x-toml',
+    'application/toml',
+    'application/rss+xml',
+    'application/xhtml+xml',
+)
 
 
 def is_rc_file(path: str) -> bool:
diff --git a/tools/cmd/clipboard/write.go b/tools/cmd/clipboard/write.go
index b273c1ddc..4b0d83806 100644
--- a/tools/cmd/clipboard/write.go
+++ b/tools/cmd/clipboard/write.go
@@ -29,7 +29,9 @@ var known_textual_mimes = map[string]bool{
 	"application/x-sh":          true,
 	"application/x-csh":         true,
 	"application/x-shellscript": true,
+	"application/javascript":    true,
 	"application/json":          true,
+	"application/xml":           true,
 	"application/x-yaml":        true,
 	"application/yaml":          true,
 	"application/x-toml":        true,