diff --git a/runtime/queries/python/highlights.scm b/runtime/queries/python/highlights.scm
index 70b91efbe..0c6a83c54 100644
--- a/runtime/queries/python/highlights.scm
+++ b/runtime/queries/python/highlights.scm
@@ -94,7 +94,7 @@
 ; Variables
 
 ((identifier) @constant
- (#match? @constant "^[A-Z_]{2,}$"))
+ (#match? @constant "^_*[A-Z][A-Z\\d_]*$"))
 
 ((identifier) @type
  (#match? @type "^[A-Z]"))