diff --git a/runtime/syntax/htmldjango.vim b/runtime/syntax/htmldjango.vim
index 07b1c375e8..bffb11aa64 100644
--- a/runtime/syntax/htmldjango.vim
+++ b/runtime/syntax/htmldjango.vim
@@ -2,6 +2,7 @@
 " Language:	Django HTML template
 " Maintainer:	Dave Hodder <dmh@dmh.org.uk>
 " Last Change:	2014 Jul 13
+" 2026 May 17 by Vim Project Add highlighting for comparison operators #20232
 
 " quit when a syntax file was already loaded
 if exists("b:current_syntax")
@@ -23,4 +24,8 @@ syn region djangoVarBlock start="{{" end="}}" contains=djangoFilter,djangoArgume
 syn region djangoComment start="{%\s*comment\(\s\+.\{-}\)\?%}" end="{%\s*endcomment\s*%}" contains=djangoTodo containedin=ALLBUT,@djangoBlocks
 syn region djangoComBlock start="{#" end="#}" contains=djangoTodo containedin=ALLBUT,@djangoBlocks
 
+" Use djangoTagBlockNaive to limit the djangoOperator matched characters to avoid spill-over with HTML, JS and CSS.
+syn region djangoTagBlockNaive start="{%" end="%}" contains=djangoTagBlock,djangoVarBlock,djangoComment,djangoComBlock
+syn match djangoOperator "==\|!=\|<=\|>=\|<\|>" contained containedin=CONTAINS,@djangoTagBlockNaive
+
 let b:current_syntax = "htmldjango"