diff --git a/impl/src/main/java/org/eclipse/parsson/JsonProviderImpl.java b/impl/src/main/java/org/eclipse/parsson/JsonProviderImpl.java
index 3c796688..57af12cd 100644
--- a/impl/src/main/java/org/eclipse/parsson/JsonProviderImpl.java
+++ b/impl/src/main/java/org/eclipse/parsson/JsonProviderImpl.java
@@ -289,6 +289,7 @@ public JsonNumber createValue(Number value) {
     private void addKnowProperty(Map<String, Object> providerConfig, Map<String, ?> config, String property) {
         if (config.containsKey(property)) {
             providerConfig.put(property, config.get(property));
+        }
     }
 
     static boolean isPrettyPrintingEnabled(Map<String, ?> config) {