diff --git a/dom/base/gen-usecounters.py b/dom/base/gen-usecounters.py
index ee1299a8f59..5b17c22e440 100755
--- a/dom/base/gen-usecounters.py
+++ b/dom/base/gen-usecounters.py
@@ -13,7 +13,7 @@ sys.path.append(os.path.dirname(__file__))
 
 import usecounters
 
-AUTOGENERATED_WARNING_COMMENT = "/* THIS FILE IS AUTOGENERATED BY gen-usercounters.py - DO NOT EDIT */"
+AUTOGENERATED_WARNING_COMMENT = "/* THIS FILE IS AUTOGENERATED BY gen-usecounters.py - DO NOT EDIT */"
 
 def generate_list(f, counters):
     def print_optional_macro_declare(name):