diff --git a/.config/nvim/syntax/ruler.vim b/.config/nvim/syntax/ruler.vim
index bc7359b3..73a21fab 100644
--- a/.config/nvim/syntax/ruler.vim
+++ b/.config/nvim/syntax/ruler.vim
@@ -8,7 +8,7 @@ endif
 
 syn match rulerLineComment        "--.*$"
 syn match rulerTripleDot          "\.\.\."
-syn match rulerDate               "\d\d\d\d\D\d\d\D\d\d \d\d\D\d\d\D\d\d"
+syn match rulerDate               "\d\d\d\d\D\d\d\D\d\d \d\d\D\d\d\D\(\d\d\|__\)"
 syn match rulerTag                "\s\+[a-zA-Z]\+:[^\n]*"
 
 syn region rulerBlockComment      start="{-"   end="-}"