diff --git a/hibernate-core/src/test/java/org/hibernate/orm/test/mapping/basic/NationalizedTest.java b/hibernate-core/src/test/java/org/hibernate/orm/test/mapping/basic/NationalizedTest.java
index 92677fca47..4dd0a0119f 100644
--- a/hibernate-core/src/test/java/org/hibernate/orm/test/mapping/basic/NationalizedTest.java
+++ b/hibernate-core/src/test/java/org/hibernate/orm/test/mapping/basic/NationalizedTest.java
@@ -10,6 +10,8 @@ import jakarta.persistence.Id;
 import org.hibernate.annotations.Nationalized;
 import org.hibernate.orm.test.jpa.BaseEntityManagerFunctionalTestCase;
 
+import org.hibernate.testing.orm.junit.DialectFeatureChecks;
+import org.hibernate.testing.orm.junit.RequiresDialectFeature;
 import org.junit.Test;
 
 import static org.hibernate.testing.transaction.TransactionUtil.doInJPA;
@@ -18,6 +20,7 @@ import static org.junit.Assert.assertEquals;
 /**
  * @author Vlad Mihalcea
  */
+@RequiresDialectFeature(feature = DialectFeatureChecks.SupportsUnicodeNClob.class)
 public class NationalizedTest extends BaseEntityManagerFunctionalTestCase {
 
 	@Override
diff --git a/hibernate-testing/src/main/java/org/hibernate/testing/orm/junit/DialectFeatureChecks.java b/hibernate-testing/src/main/java/org/hibernate/testing/orm/junit/DialectFeatureChecks.java
index 32ba62a309..174ae834d0 100644
--- a/hibernate-testing/src/main/java/org/hibernate/testing/orm/junit/DialectFeatureChecks.java
+++ b/hibernate-testing/src/main/java/org/hibernate/testing/orm/junit/DialectFeatureChecks.java
@@ -66,6 +66,7 @@ import org.hibernate.dialect.OracleDialect;
 import org.hibernate.dialect.PostgreSQLDialect;
 import org.hibernate.dialect.SQLServerDialect;
 import org.hibernate.dialect.SpannerDialect;
+import org.hibernate.dialect.SybaseASEDialect;
 import org.hibernate.dialect.SybaseDialect;
 import org.hibernate.dialect.SybaseDriverKind;
 import org.hibernate.dialect.TiDBDialect;
@@ -1023,6 +1024,15 @@ abstract public class DialectFeatureChecks {
 		}
 	}
 
+	public static class SupportsUnicodeNClob implements DialectFeatureCheck {
+		@Override
+		public boolean apply(Dialect dialect) {
+			return !(dialect instanceof SybaseASEDialect aseDialect)
+					// The jconn driver apparently doesn't support unicode characters
+					|| aseDialect.getDriverKind() == SybaseDriverKind.JTDS;
+		}
+	}
+
 	private static final HashMap<Dialect, SqmFunctionRegistry> FUNCTION_REGISTRIES = new HashMap<>();
 
 	public static boolean definesFunction(Dialect dialect, String functionName) {