diff --git a/runtime/syntax/jj.vim b/runtime/syntax/jjdescription.vim
similarity index 94%
rename from runtime/syntax/jj.vim
rename to runtime/syntax/jjdescription.vim
index 0b2d29e..04848bc 100644
--- a/runtime/syntax/jj.vim
+++ b/runtime/syntax/jjdescription.vim
@@ -21,4 +21,4 @@
 hi def link jjRemoved Removed
 hi def link jjChanged Changed
 
-let b:current_syntax = 'jj'
+let b:current_syntax = 'jjdescription'