diff --git a/extensions/hibernate-validator/deployment/src/test/java/io/quarkus/hibernate/validator/test/UserCountryNotSetValidatorLocaleTest.java b/extensions/hibernate-validator/deployment/src/test/java/io/quarkus/hibernate/validator/test/UserCountryNotSetValidatorLocaleTest.java
index 47206adc1caed..7eead10336d8b 100644
--- a/extensions/hibernate-validator/deployment/src/test/java/io/quarkus/hibernate/validator/test/UserCountryNotSetValidatorLocaleTest.java
+++ b/extensions/hibernate-validator/deployment/src/test/java/io/quarkus/hibernate/validator/test/UserCountryNotSetValidatorLocaleTest.java
@@ -30,7 +30,9 @@ public void run() {
             }).setAfterAllCustomizer(new Runnable() {
                 @Override
                 public void run() {
-                    System.setProperty("user.country", userCountry);
+                    if (userCountry != null) {
+                        System.setProperty("user.country", userCountry);
+                    }
                     System.setProperty("user.language", userLanguage);
                 }
             });