diff --git a/components/style/properties/data.py b/components/style/properties/data.py
index 1553df133b5..51ed2b88348 100644
--- a/components/style/properties/data.py
+++ b/components/style/properties/data.py
@@ -38,7 +38,7 @@ def to_rust_ident(name):
 
 
 def to_camel_case(ident):
-    return re.sub("(^|_|-)([a-z])", lambda m: m.group(2).upper(), ident.strip("_").strip("-"))
+    return re.sub("(^|_|-)([a-z0-9])", lambda m: m.group(2).upper(), ident.strip("_").strip("-"))
 
 
 def to_camel_case_lower(ident):