diff --git a/lib/util/propTypes.js b/lib/util/propTypes.js
index 8e9e85b669..5b8eb885c7 100644
--- a/lib/util/propTypes.js
+++ b/lib/util/propTypes.js
@@ -547,9 +547,11 @@ module.exports = function propTypesInstructions(context, components, utils) {
         break;
       case 'GenericTypeAnnotation':
         if (propTypes.id.name === '$ReadOnly') {
-          ignorePropsValidation = declarePropTypesForObjectTypeAnnotation(propTypes.typeParameters.params[0], declaredPropTypes);
+          ignorePropsValidation = declarePropTypesForObjectTypeAnnotation(
+            propTypes.typeParameters.params[0],
+            declaredPropTypes);
         } else {
-          ignorePropsValidation = true;          
+          ignorePropsValidation = true;
         }
         break;
       case null: