diff --git a/diktat-rules/src/main/kotlin/org/cqfn/diktat/ruleset/rules/chapter1/PackageNaming.kt b/diktat-rules/src/main/kotlin/org/cqfn/diktat/ruleset/rules/chapter1/PackageNaming.kt
index e6d08ba967..998273d77b 100644
--- a/diktat-rules/src/main/kotlin/org/cqfn/diktat/ruleset/rules/chapter1/PackageNaming.kt
+++ b/diktat-rules/src/main/kotlin/org/cqfn/diktat/ruleset/rules/chapter1/PackageNaming.kt
@@ -82,6 +82,9 @@ class PackageNaming(configRules: List<RulesConfig>) : DiktatRule(
         } ?: if (visitorCounter.incrementAndGet() == 1) {
             log.error("Not able to find an external configuration for domain" +
                 " name in the common configuration (is it missing in yml config?)")
+        } else {
+            @Suppress("RedundantUnitExpression")
+            Unit
         }
     }