diff --git a/Package/Property List/Property List.sublime-syntax b/Package/Property List/Property List.sublime-syntax
index 83486681..32831cc3 100644
--- a/Package/Property List/Property List.sublime-syntax	
+++ b/Package/Property List/Property List.sublime-syntax	
@@ -15,9 +15,15 @@
 name: Property List (XML)
 scope: text.xml.plist
 file_extensions:
+  - plist
+  - tmSnippet
   - tmTheme
   - stTheme
   - tmLanguage
+  - hidden-tmSnippet
+  - hidden-tmTheme
+  - hidden-stTheme
+  - hidden-tmLanguage
 # first_line_match: ^\s*<!DOCTYPE plist|^\s*<plist version="1\.0">
 
 contexts:
diff --git a/Package/TextMate Preferences/TextMate Preferences.sublime-syntax b/Package/TextMate Preferences/TextMate Preferences.sublime-syntax
index e1c5820e..3953f9b8 100644
--- a/Package/TextMate Preferences/TextMate Preferences.sublime-syntax	
+++ b/Package/TextMate Preferences/TextMate Preferences.sublime-syntax	
@@ -3,6 +3,7 @@
 name: TextMate Preferences (PList / XML)
 file_extensions:
   - tmPreferences
+  - hidden-tmPreferences
 scope: text.xml.plist.textmate.preferences
 
 contexts: