diff --git a/config/checkstyle_sevntu_checks.xml b/config/checkstyle_sevntu_checks.xml
index 2d2d6dd4d..8fd085c25 100644
--- a/config/checkstyle_sevntu_checks.xml
+++ b/config/checkstyle_sevntu_checks.xml
@@ -13,5 +13,6 @@
         <module name="NameConventionForJunit4TestClassesCheck"/>
         <module name="EmptyPublicCtorInClassCheck"/>
         <module name="TernaryPerExpressionCount"/>
+        <module name="ReturnNullInsteadOfBoolean"/>
     </module>
 </module>