diff --git a/tools/warn/java_warn_patterns.py b/tools/warn/java_warn_patterns.py
index 3a3a676..0a443d4 100644
--- a/tools/warn/java_warn_patterns.py
+++ b/tools/warn/java_warn_patterns.py
@@ -93,6 +93,8 @@
              [r".*: warning: \[MultipleTopLevelClasses\] .+"]),
     java_low('Avoid having multiple unary operators acting on the same variable in a method call',
              [r".*: warning: \[MultipleUnaryOperatorsInMethodCall\] .+"]),
+    java_low('OnNameExpected naming style',
+             [r".*\.java:.*: warning: .+ \[OnNameExpected\]$"]),
     java_low('Package names should match the directory they are declared in',
              [r".*: warning: \[PackageLocation\] .+"]),
     java_low('Non-standard parameter comment; prefer `/* paramName= */ arg`',